Auth bypass in Owen2345 Camaleoncms
CVE-2026-73326
CamaleonCMS contains a missing authorization vulnerability that allows any authenticated low-privileged user to access and modify plugin settings by reaching four unprotected plugin-administration endpoints without administrator-level authorization. Attackers can manipulate plugin configuration parameters at runtime across the attack, front_cache, cama_meta_tag, and cama_contact_form plugins to alter cached page behavior, modify public meta-tag output, or reconfigure contact forms, enabling account takeover when chained with stored cross-site scripting through the contact form's before_html field.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L.
EPSS exploit prediction
EPSS: 0.004 (29.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Owen2345 Camaleoncms — versions 0
Weakness classification (CWE)
References
- github.com/owen2345/camaleon-cms (product, patch)
- enrik-m.github.io/posts/Camaleon-CMS-Vulnerabilties/ (technical-description)
- www.vulncheck.com/advisories/camaleoncms-missing-authorization-via-plugin-admin… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-73326?
- CVE-2026-73326 is a high-severity vulnerability in Owen2345 Camaleoncms, classified under Missing Authorization. CVSS score: 7.6/10. Published 2026-08-12.
- How severe is CVE-2026-73326?
- High severity. CVSS v3 base score is 7.6 out of 10.