Camaleon CMS Privilege Escalation
Priority MEDIUM 49CWE-915Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-915.
Summary
A Privilege Escalation through a Mass Assignment exists in Camaleon CMS When a user wishes to change his password, the 'updated_ajax' method of the UsersController is called. The vulnerability stems from the use of the dangerous permit! method, which allows all parameters to pass through without any filtering.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00628 50th percentileScored 2026-11-07
Fix Fixed camaleon_cms (RubyGems): 2.9.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | camaleon_cms (RubyGems) | before 2.9.1 | 2.9.1 | Patch available | GHSA-rp28-mvq3-wf8j |
- camaleon_cms (RubyGems) Vendor— Affected before 2.9.1 Fixed in 2.9.1 Patch available GHSA-rp28-mvq3-wf8j
Remediation
- Fix · GHSA-rp28-mvq3-wf8j camaleon_cms (RubyGems) Fixed in 2.9.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2304
- 2026-10-03 Alias added: GHSA-rp28-mvq3-wf8j
- 2026-10-30 EPSS moved to the 50th–90th percentile
References
Other 6
- https://www.tenable.com/security/research/tra-2025-09
- https://github.com/owen2345/camaleon-cms
- https://github.com/owen2345/camaleon-cms/pull/1109
- https://github.com/owen2345/camaleon-cms/commit/179fd6b1ecf258d3e214aebfa87ac4a322ea4db4
- https://github.com/owen2345/camaleon-cms/releases/tag/2.9.1
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/camaleon_cms/CVE-2025-2304.yml
More owen2345 vulnerabilities
- TI-2023-14148 Camaleon CMS v2.7.0 was discovered to contain a Server-Side Template Injection (SSTI)… CVSS 3.1CRITICAL 9.8
- TI-2024-31375 Arbitrary file write leading to RCE in Camaleon CMS CVSS 3.1CRITICAL 10.0
- TI-2026-47396 Camaleon CMS 2.1.1 - 2.9.1 Authenticated RCE via select_eval Custom Field CVSS 4.0HIGH 8.7
- TI-2021-07976 Camaleon CMS - Insufficient Session Expiration after Password Change CVSS 3.1HIGH 8.8
- TI-2024-31376 Arbitrary path traversal in Camaleon CMS CVSS 3.1HIGH 7.7
- TI-2026-51449 CamaleonCMS Missing Authorization via Plugin Administration Endpoints CVSS 4.0HIGH 7.2
Sources
- CVE-2025-2304 · CVE Program
- CVE-2025-2304 · NVD
- FIRST EPSS
- GHSA-rp28-mvq3-wf8j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences