What’s Vulnerable › Vulnerabilities

CVE-2025-66204: WBCE CMS allows brute-force protection bypass using X-Forwarded-For header

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-09 · updated 2026-10-07
• Weakness: CWE-307

Description

WBCE CMS is a content management system. Version 1.6.4 contains a brute-force protection bypass where an attacker can indefinitely reset the counter by modifying `X-Forwarded-For` on each request, gaining unlimited password guessing attempts, effectively bypassing all brute-force protection. The application fully trusts the `X-Forwarded-For` header without validating it or restricting its usage. This issue is fixed in version 1.6.5.

Affected products

• WBCE CMS: before 1.6.5 — fixed in 1.6.5

How to fix

Upgrade to a fixed version: WBCE CMS 1.6.5. Check the vendor advisory for mitigations.

References

• https://github.com/WBCE/WBCE_CMS/commit/3765baddf27f31bbbea9c0228c452268621b25e5
• https://github.com/WBCE/WBCE_CMS/releases/tag/1.6.5
• https://github.com/WBCE/WBCE_CMS/security/advisories/GHSA-f676-f375-m7mw
• https://github.com/WBCE/WBCE_CMS/security/advisories/GHSA-f676-f375-m7mw

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