unclecode 7976b45817 fix(security): patch 4 vulns - file write, SSRF, monitor auth, XSS ...

Fixes for 4 vulnerabilities reported by Jeongbean Jeon (2026-04-13):

1. Arbitrary File Write (CVSS 9.1): /screenshot and /pdf output_path
   now validated via validate_output_path() restricting writes to
   CRAWL4AI_OUTPUT_DIR. Pydantic validator rejects '..' at schema level.

2. SSRF via Webhook (CVSS 8.6): validate_webhook_url() blocks private
   IPs (RFC 1918, loopback, link-local, cloud metadata), dangerous
   hostnames (localhost, metadata.google.internal, host.docker.internal).
   Validated at job submission + send time. follow_redirects=False set.

3. Monitor Auth Bypass (CVSS 6.5): monitor_router now mounted with
   dependencies=[Depends(token_dep)]. WebSocket /ws endpoint checks
   CRAWL4AI_API_TOKEN from query params.

4. Stored XSS (CVSS 6.1): Server-side html.escape() on URLs and errors
   in monitor.py. Client-side escapeHtml() wrapping all innerHTML
   template injections in index.html (active/completed/error lists +
   WebSocket updates).

33 adversarial security tests added.

DO NOT PUSH until release day. Merge to develop + tag + advisory together.

2026-04-13 11:29:54 +00:00

3.9 KiB

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