{"id":"CVE-2025-56200","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-56200","generatedAt":"2026-10-28T00:15:22.278Z","title":"A URL validation bypass vulnerability exists in validator.js through version 13.15.15.","description":"A URL validation bypass vulnerability exists in validator.js through version 13.15.15. The isURL() function uses '://' as a delimiter to parse protocols, while browsers use ':' as the delimiter. This parsing difference allows attackers to bypass protocol and domain validation by crafting URLs leading to XSS and Open Redirect attacks.","published":"2025-09-30T18:15:50.000Z","lastModified":"2026-07-05T02:16:58.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["validator project/validator"],"epss":{"score":0.00324,"percentile":0.25262,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://gist.github.com/junan-98/27ae092aa40e2a057d41a0f95148f666","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://gist.github.com/junan-98/a93130505b258b9e4ec9f393e7533596","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/validatorjs/validator.js","tags":["Product"],"source":"cve@mitre.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-56200","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}