CSRF in Admidio
CVE-2026-32755
Admidio is an open-source user management solution. In versions 5.0.6 and below, the save_membership action in modules/profile/profile_function.php saves changes to a member's role membership start and end dates but does not validate the CSRF token. The handler checks stop_membership and remove_former_membership against the CSRF token but omits save_membership from that check. Because membership UUIDs appear in the HTML source visible to authenticated users, an attacker can embed a crafted POST form on any external page and trick a role leader into submitting it, silently altering membership dates for any member of roles the victim leads. A role leader's session can be silently exploited via CSRF to manipulate any member's membership dates, terminating access by backdating, covertly extending unauthorized access, or revoking role-restricted features, all without confirmation, notification, or administrative approval. This issue has been fixed in version 5.0.7.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (6.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.2% 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: 0.002 · change: +0.000
Affected products
- Admidio — versions < 5.0.7
Weakness classification (CWE)
References
- github.com/Admidio/admidio/security/advisories/GHSA-h8gr-qwr6-m9gx (Exploit, Mitigation, Vendor Advisory)
- github.com/Admidio/admidio/releases/tag/v5.0.7 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-32755?
- CVE-2026-32755 is a medium-severity vulnerability in Admidio, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.7/10. Published 2026-03-19.
- How severe is CVE-2026-32755?
- Medium severity. CVSS v3 base score is 5.7 out of 10.