CVE-2026-119121

Crawl4AI 0.9.0 before 0.9.5 JavaScript Injection via css_selector and wait_for

State: Published
Severity: 5.3 Medium
Published: Oct 29, 2026
Updated: Oct 29, 2026
Reserved: Oct 29, 2026

Description

Crawl4AI from 0.9.0 before 0.9.5 contains a JavaScript injection vulnerability in the Docker API server that allows authenticated API clients to run arbitrary JavaScript in the crawl page via allowlisted css_selector and wait_for fields. Attackers can inject quotes into css_selector or supply js: conditions in wait_for, bypassing the js_code block to alter page state and returned crawl content.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	VulnCheck

Weaknesses

CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Affected Products

Product	Versions
crawl4aiunclecode	0.9.0 to before 0.9.5Affected 0.9.5Not affected

References

GitHub Security Advisory (GHSA-qj46-wp7m-rgj8)vendor-advisory
VulnCheck Advisory: Crawl4AI 0.9.0 before 0.9.5 JavaScript Injection via css_selector and wait_forthird-party-advisory

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