CVE-2026-91942
crawl4ai before 0.9.3 Cross-Site Scripting via innerHTML
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | unclecode |
| Product | crawl4ai |
| Published | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
unclecode / crawl4ai
0 < 0.9.3
References
Credits
🔍 c240030