CVE-2025-66204
WBCE CMS allows brute-force protection bypass using X-Forwarded-For header
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
WBCE CMS allows brute-force protection bypass using X-Forwarded-For header
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.
- Record
CVE-2025-66204- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-307, CWE-693
- Updated
- 2026-11-02
EUVDEUVD-2025-201840
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.
- Record
EUVD-2025-201840- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-66204- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-307, CWE-693
- Updated
- 2026-11-02
OSV
WBCE CMS allows brute-force protection bypass using X-Forwarded-For header
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.
- Record
CVE-2025-66204- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-307, CWE-693
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | lukasz-rybak/CVE-2025-66204 | 2026-04-11 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-66204 is a medium vulnerability (CVSS 6.3) in Wbce Cms, published December 8, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.48%, the 41st percentile. No source names a fixed version.