xxe
Untrusted XML parsed with external entities enabled, allowing file read / SSRF.
Skill by jaiswalakshansh
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/jaiswalakshansh-xxe
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/xxe
What's inside
- Skill name
xxe- Description
- Untrusted XML parsed with external entities enabled, allowing file read / SSRF.
- License
- MIT
- Instructions
- 16 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
SKILL.md (first lines)
# XML External Entity (XXE) ## Recon Find XML parse sinks fed by input: `etree.parse/fromstring`, `minidom.parse`, `sax.parse`, DOM/SAX parsers. Sources: request bodies, uploaded files, SOAP. ## Verify (false-positive reduction) 1. Is the parser configured to resolve external entities/DTDs? Modern `defusedxml` or parsers with entity resolution disabled are safe. 2. Is the XML attacker-controlled? ## Evidence Source→sink path and the parser call. Payload sketch: a `<!DOCTYPE>` with a `SYSTEM "file:///etc/passwd"` entity.
From jaiswalakshansh/crucible, MIT.
More from jaiswalakshansh/crucible
- 0.471score
sql-injection
jaiswalakshansh
Detect SQL injection: untrusted input reaching a database query without parameterization or safe escaping.
SkillCFreshness: CClaude Code +9 - 0.469score
ssrf
jaiswalakshansh
Untrusted input controlling the destination of a server-side HTTP request.
SkillCFreshness: CClaude Code +9 - 0.469score
broken-access-control
jaiswalakshansh
A resource or action reachable without an ownership/authorization check (IDOR, missing authz).
SkillCFreshness: CClaude Code +9 - 0.469score
business-logic
jaiswalakshansh
A flaw in application logic (not a generic injection) that lets an attacker abuse intended functionality.
SkillCFreshness: CClaude Code +9 - 0.469score
command-injection
jaiswalakshansh
Untrusted input reaching an OS command execution sink without safe argument handling.
SkillCFreshness: CClaude Code +9 - 0.469score
auth-bypass
jaiswalakshansh
Authentication that can be skipped, forged, or is missing on a protected action.
SkillCFreshness: CClaude Code +9 - 0.469score
insecure-deserialization
jaiswalakshansh
Untrusted data deserialized by an unsafe deserializer, enabling object injection / RCE.
SkillCFreshness: CClaude Code +9 - 0.469score
insecure-llm-output
jaiswalakshansh
LLM/model output flowing into a dangerous sink (code/command/SQL/HTML) without validation.
SkillCFreshness: CClaude Code +9 - 0.466score
csrf
jaiswalakshansh
A state-changing endpoint that lacks anti-CSRF protection.
SkillCFreshness: CClaude Code +9 - 0.464score
ssti
jaiswalakshansh
Untrusted input rendered as a template, allowing template-engine expression execution.
SkillCFreshness: CClaude Code +9 - 0.464score
code-injection
jaiswalakshansh
Untrusted input reaching a dynamic code-evaluation sink (eval/exec).
SkillCFreshness: CClaude Code +9 - 0.464score
open-redirect
jaiswalakshansh
Untrusted input controlling a redirect target, enabling phishing / token leakage.
SkillCFreshness: CClaude Code +9
Signals
- Stars
- 0
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Jul 23, 2026 (3 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/jaiswalakshansh/crucible
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
More from jaiswalakshansh
- 0.471score
sql-injection
jaiswalakshansh
Detect SQL injection: untrusted input reaching a database query without parameterization or safe escaping.
SkillCFreshness: CClaude Code +9 - 0.469score
broken-access-control
jaiswalakshansh
A resource or action reachable without an ownership/authorization check (IDOR, missing authz).
SkillCFreshness: CClaude Code +9 - 0.469score
ssrf
jaiswalakshansh
Untrusted input controlling the destination of a server-side HTTP request.
SkillCFreshness: CClaude Code +9 - 0.469score
business-logic
jaiswalakshansh
A flaw in application logic (not a generic injection) that lets an attacker abuse intended functionality.
SkillCFreshness: CClaude Code +9 - 0.469score
command-injection
jaiswalakshansh
Untrusted input reaching an OS command execution sink without safe argument handling.
SkillCFreshness: CClaude Code +9 - 0.469score
insecure-deserialization
jaiswalakshansh
Untrusted data deserialized by an unsafe deserializer, enabling object injection / RCE.
SkillCFreshness: CClaude Code +9
Cite this page
xxe skill. Agent Mart. https://agentmart.dev/skills/jaiswalakshansh-xxe (last updated 2026-10-24)