CVE-2026-91942
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.4
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- EPSS probability
- 0.22%
- CWE
- CWE-79
- Published
- 2026-09-15
- Last modified
- 2026-09-15
Affected products
- unclecode crawl4ai
- unclecode crawl4ai
Weakness type
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