GHSA-9965-vmph-33xx
validator.js has a URL validation bypass vulnerability in its isURL function
At a glance
- Published
- Updated
- CVE
- CVE-2025-56200
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
A URL validation bypass vulnerability exists in validator.js prior to version 13.15.20. 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 packages
| Package | Versions |
|---|---|
| npm · validator | introduced 0, fixed 13.15.20 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-56200 ADVISORY
- https://github.com/validatorjs/validator.js/issues/2600 WEB
- https://github.com/validatorjs/validator.js/pull/2608 WEB
- https://github.com/validatorjs/validator.js/commit/cbef5088f02d36caf978f378bb845fe49bdc0809 WEB
- https://gist.github.com/junan-98/27ae092aa40e2a057d41a0f95148f666 WEB
- https://gist.github.com/junan-98/a93130505b258b9e4ec9f393e7533596 WEB
- https://github.com/validatorjs/validator.js PACKAGE
- https://github.com/validatorjs/validator.js/releases/tag/13.15.20 WEB
- http://validatorjs.com WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |