Auth bypass in Owen2345 Camaleon Cms
CVE-2026-120429
Camaleon CMS before 2.9.2 contains a missing authorization vulnerability in Admin::MediaController that allows low-privileged authenticated users to bypass the role-based Media permission. Attackers can POST to /admin/media/upload to store files, read private media via download_private_file, and use crop with saved_avatar to change other users' avatars.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/owen2345/camaleon-cms/pull/1147 (issue-tracking, patch)
- github.com/owen2345/camaleon-cms/commit/7fe4fa0bf99256dfe32b5f674baf4f771606549e (patch)
- github.com/owen2345/camaleon-cms/blob/2.9.1/app/controllers/camaleon_cms/admin/… (technical-description)
- github.com/owen2345/camaleon-cms/releases/tag/2.9.2 (release-notes)
- www.vulncheck.com/advisories/camaleon-cms-before-2.9.2-missing-authorization-vi… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-120429?
- CVE-2026-120429 is a high-severity vulnerability in Owen2345 Camaleon Cms, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-11-02.
- How severe is CVE-2026-120429?
- High severity. CVSS v3 base score is 7.1 out of 10.