CSRF in Cotonti
CVE-2026-100524
Cotonti through 1.0.0 contains a cross-site request forgery vulnerability in the extensions manager that allows attackers to perform state-changing actions without anti-CSRF token validation. Attackers can craft links or embed images to force administrators to install, update, pause, or unpause extensions by tricking them into visiting a malicious page while authenticated.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.001 (2.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/Cotonti/Cotonti (product)
- github.com/Cotonti/Cotonti/blob/1.0.0/system/admin/admin.extensions.php (technical-description)
- github.com/Cotonti/Cotonti/issues/1907 (issue-tracking)
- github.com/Cotonti/Cotonti/pull/1908 (issue-tracking, patch)
- VulnCheck Advisory: Cotonti through 1.0.0 Cross-Site Request Forgery via Extensions Manager (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100524?
- CVE-2026-100524 is a medium-severity vulnerability in Cotonti, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.4/10. Published 2026-09-26.
- How severe is CVE-2026-100524?
- Medium severity. CVSS v3 base score is 5.4 out of 10.