dom-xss
Untrusted browser input reaching a DOM HTML sink without escaping.
Skill by jaiswalakshansh
Chalk Labs
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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-dom-xss
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.
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About
Use cases: frontend
Reviews
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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/dom-xss
What's inside
- Skill name
dom-xss- Description
- Untrusted browser input reaching a DOM HTML sink without escaping.
- License
- MIT
- Instructions
- 17 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
SKILL.md (first lines)
# DOM-Based XSS ## Recon Sources: `location.search/hash/href`, `document.URL/cookie/referrer`, `window.name`, `postMessage` data. Sinks: assignment to `innerHTML`/`outerHTML`, `dangerouslySetInnerHTML`, `document.write`, `insertAdjacentHTML`, `eval`. ## Verify (false-positive reduction) 1. Is the value inserted as HTML, or as text (`textContent`, escaped)? Text is safe. 2. Is it sanitized (DOMPurify, an allow-list) before insertion? 3. Is the source genuinely attacker-influenced? ## Evidence Source→sink path and the sink (call or assignment target). Payload sketch: `<img src=x onerror=alert(1)>`.
From jaiswalakshansh/crucible, MIT.
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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
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SkillCFreshness: CClaude Code +9 - 0.469score
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Untrusted input reaching an OS command execution sink without safe argument handling.
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broken-access-control
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A resource or action reachable without an ownership/authorization check (IDOR, missing authz).
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business-logic
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SkillCFreshness: CClaude Code +9 - 0.469score
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insecure-deserialization
jaiswalakshansh
Untrusted data deserialized by an unsafe deserializer, enabling object injection / RCE.
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Cite this page
dom-xss skill. Agent Mart. https://agentmart.dev/skills/jaiswalakshansh-dom-xss (last updated 2026-10-24)