EUVD-2026-78799
GHSA-xjmx-xxmr-qf54
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Let me synthesize. CVE-2026-91942: crawl4ai before 0.9.3, DOM-based XSS in Docker Playground UI, innerHTML assignment of untrusted crawl results. …
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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