CVE-2025-66204

WBCE CMS allows brute-force protection bypass using X-Forwarded-For header

HIGH
8.1
CVSS Score
Published: December 8, 2025 at 11:50 PM UTC
Updated: October 7, 2026 at 08:10 PM UTC
1 product affected across 1 vendorWBCE CMS

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Severity
HIGH8.1
Exploit prediction
EPSS 0.5%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.6.5
Affected range stops below 1.6.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/WBCE/WBCE_CMS/security/advisories/GHSA-f676-f375-m7mw
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/WBCE/WBCE_CMS/releases/tag/1.6.5

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-307CWE-693

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