CVEvulnerability
CVE-2025-56200
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-09-30
- Last modified
- 2026-07-05
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
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.
Affected configurations
• validator project validator (<= 3.15.15)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://gist.github.com/junan-98/27ae092aa40e2a057d41a0f95148f666 Exploit, Third Party Advisory
- https://gist.github.com/junan-98/a93130505b258b9e4ec9f393e7533596 Exploit, Third Party Advisory
- https://github.com/validatorjs/validator.js Product