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TI-2026-62077 Aliases CVE-2026-91942GHSA-xjmx-xxmr-qf54

crawl4ai before 0.9.3 Cross-Site Scripting via innerHTML

Priority MEDIUM 56CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

crawl4ai before 0.9.3 contains a DOM-based cross-site scripting vulnerability in the Docker Playground UI that assigns untrusted crawl results to element.innerHTML. Attackers can craft malicious PDFs with event-handler markup to execute JavaScript in the Playground origin and steal API tokens from sessionStorage for authenticated API abuse.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00237 14th percentileScored 2026-11-07
Fix Fixed crawl4ai (unclecode): 0.9.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
unclecodecrawl4aibefore 0.9.30.9.3Patch availableCNA
  • crawl4ai Vendorunclecode Affected before 0.9.3 Fixed in 0.9.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:*——unclecode
  • cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:* Versions — — ·unclecode

Remediation

  • Fix · CNA crawl4ai (unclecode) Fixed in 0.9.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    unclecode crawl4ai 0.9.3

    5 records Highest priority Priority HIGH 2 HIGH, 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-62075 crawl4ai before 0.9.3 Arbitrary File Write via PDFContentScrapingStrategyPriority HIGH 77
    • TI-2026-62078 Crawl4AI before 0.9.3 SSRF via PDFContentScrapingStrategyPriority HIGH 69
    • TI-2026-62076 Crawl4AI before 0.9.3 Denial of Service via PDFContentScrapingStrategyPriority MEDIUM 44
    Show all 5 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-91942
  2. 2026-10-03 Alias added: GHSA-xjmx-xxmr-qf54

References

Advisory 1

  • TI-2026-38760 Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API CVSS 3.1CRITICAL 10.0
  • TI-2026-40630 Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key CVSS 4.0CRITICAL 9.3
  • TI-2026-82637 Denial of service in Crawl4AI via unbounded CrawlerRunConfig delay fields CVSS 4.0HIGH 8.7
  • TI-2026-62075 crawl4ai before 0.9.3 Arbitrary File Write via PDFContentScrapingStrategy CVSS 4.0HIGH 8.7
  • TI-2026-82640 Blind SSRF in Crawl4AI Docker server via CacheValidator freshness check CVSS 4.0MEDIUM 6.9
  • TI-2026-82638 Untrusted model loading in Crawl4AI via CosineStrategy model_name CVSS 4.0HIGH 7.7
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences