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  4. CVE 2026 91942 crawl4ai before 093 cross site scripting via
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Back to active CVEs
Medium · CVSS 5.1CVE-2026-91942

crawl4ai before 0.9.3 Cross-Site Scripting via innerHTMLCVE-2026-91942

Answer in brief

CVE-2026-91942 records a Medium severity (CVSS 5.1) vulnerability in crawl4ai before 0.9.3 Cross-Site Scripting via innerHTML. The current sources do not mark it as known exploited. The current feed maps unclecode/crawl4ai (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 15, 2026Updated Sep 17, 2026Source checked Oct 30, 2026First seen by HOL Sep 15, 2026Material review Sep 17, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps unclecode/crawl4ai (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
unclecode/crawl4aigeneric>=0 <0.9.30.9.3

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for unclecode/crawl4ai.
  2. 2Review the reported fix. Update unclecode/crawl4ai to 0.9.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 15, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Redux Framework <= 4.5.15 - Authenticated (Subscriber+) Stored Cross-Site Scripting via multi_media Field and Client-Supplied checkuser_idAlso CWE-79
  • Independent Analytics Pro <= 2.15.5 - Unauthenticated Stored Cross-Site Scripting via 'utm_campaign' ParameterAlso CWE-79
  • FV Flowplayer Video Player <= 7.5.55.7212 - Unauthenticated Stored Cross-Site Scripting via 'ad' Shortcode Attribute in CommentsAlso CWE-79
  • FV Flowplayer Video Player <= 7.5.55.7212 - Unauthenticated Stored Cross-Site Scripting via 'align' Shortcode AttributeAlso CWE-79
  • FV Flowplayer Video Player <= 7.5.55.7212 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Shortcode AttributesAlso CWE-79
  • easy.jobs <= 2.8.4 - Unauthenticated Stored Cross-Site Scripting via 'cover_letter' ParameterAlso CWE-79

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 30, 2026
References
2 linked sources
Open source record