CVE-2026-56263: Crawl4AI - Stored Cross-Site Scripting in Monitor Dashboard

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-23 · updated 2026-06-25
Weakness: CWE-79

Description

Crawl4AI before 0.8.7 contains a stored cross-site scripting vulnerability in the monitor dashboard that renders crawl URLs and error messages via innerHTML without escaping. An attacker can submit a crafted crawl request with malicious markup that executes in an operator's browser when viewing the dashboard.

Affected products

unclecode crawl4ai: before 0.8.7 — fixed in 0.8.7

How to fix

Upgrade to a fixed version: unclecode crawl4ai 0.8.7. Check the vendor advisory for mitigations.

References

https://github.com/unclecode/crawl4ai
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg
https://www.vulncheck.com/advisories/crawl4ai-stored-cross-site-scripting-in-monitor-dashboard

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