CVE-2025-56200 — Cross-site Scripting in Project Validator
Severity
6.1MEDIUMNVD
EPSS
0.0%
top 86.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 30
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7