Medium severity5.4NVD Advisory· Published Sep 15, 2026
CVE-2026-91942
CVE-2026-91942
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.
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Affected products
1Patches
Vulnerability mechanics
References
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