XSS in Validator_project Validator
CVE-2025-56200
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…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (22.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Validator_project Validator
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Broken Link)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Product)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-56200?
- CVE-2025-56200 is a medium-severity vulnerability in Validator_project Validator, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-09-30.
- How severe is CVE-2025-56200?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-56200 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.