What’s Vulnerable › Vulnerabilities

CVE-2026-53760: Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests

• Severity: medium (CVSS 5.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-09-09
• Weakness: CWE-352

Description

Admidio is an open-source user management solution. In versions 5.0.11 and prior, the modules/plugins.php endpoint handles plugin installation, uninstallation, and update operations via GET requests without CSRF token validation. Because these are top-level navigations, browsers include SameSite=Lax session cookies. An attacker crafts a malicious page that, when an authenticated administrator visits it, triggers arbitrary plugin operations. The uninstall operation executes DROP TABLE SQL scripts and destroys plugin data. This issue has been patched via commit 056b1bd.

Affected products

• admidio: before 056b1bd9f995437395e337d2c73a32e5c96ee616

References

• https://github.com/Admidio/admidio/commit/056b1bd9f995437395e337d2c73a32e5c96ee616
• https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f
• https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f

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