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Advisories

Crawl4AI 0.9.0 before 0.9.5 JavaScript Injection via css_selector and wait_for

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Severity
medium
Date
Affecting

  • crawl4ai >= 0.9.0, < 0.9.5

CWE
  • CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CVSS
5.3
CVSS V4 Vector
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
Credit
manus-use, ntohidi
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.

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