{"id":"CVE-2026-91942","title":"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","summary":"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 …","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"unclecode","product":"crawl4ai","affected":["crawl4ai < 0.9.3"],"published":"2026-09-15","updated":"2026-09-17","sourceUpdated":"2026-09-17T15:16:57.450","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91942","references":[{"url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-7g3g-vhm6-79f3","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/crawl4ai-before-0.9.3-cross-site-scripting-via-innerhtml","label":"disclosure@vulncheck.com"},{"url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-7g3g-vhm6-79f3","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-17T14:51:30.420052Z"},"epss":0.00223,"epssPercentile":0.13178,"ingestedAt":"2026-09-15T15:39:12.922Z","slug":"CVE-2026-91942","body":"## Overview\n\ncrawl4ai 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":206151,"id":"CVE-2026-91942","ts":1789658476235,"field":"exploit_available","old":"false","new":"true"}]}