# CVE-2026-53760: Admidio CSRF in plugin management module

Source: https://junglewise.ai/threats/cve-2026-53760-admidio-csrf-in-plugin-management-module  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-04. Updated: 2026-07-09  
License: CC BY 4.0 with a link back

CVE-2026-53760 · Severity: medium · CVSS 5.2 · Published 2026-09-04

Admidio is a free open-source user management system for websites. A security flaw allows an attacker to trick an administrator into visiting a malicious website that silently triggers the installation, update, or removal of software plugins. If a plugin is uninstalled this way, it can lead to permanent data loss by deleting database tables without the administrator's consent.

Technologies: [Admidio](https://junglewise.ai/threats/technologies/admidio), [admidio/admidio (Packagist)](https://junglewise.ai/threats/technologies/admidio-admidio). Vendors: [Admidio](https://junglewise.ai/threats/vendors/admidio), [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2026-53760 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-53760 being exploited in the wild.

**How severe is CVE-2026-53760?** Medium severity, with a CVSS score of 5.2, published 4 September 2026.

**Which products and versions are affected?** Admidio <= 5.0.11; admidio/admidio (Packagist) <= 5.0.11, ECOSYSTEM:introduced=0,last_affected=5.0.11.

**Is there a fix for CVE-2026-53760?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-53760 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-53760?** Check whether you run Admidio or admidio/admidio (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A Cross-Site Request Forgery (CSRF) vulnerability exists in `modules/plugins.php` because it performs state-changing operations (install, uninstall, update) using GET requests without validating CSRF tokens. Since these operations are triggered via top-level GET navigations, modern browsers include `SameSite=Lax` session cookies, allowing a cross-origin attacker to execute these actions if an authenticated administrator visits a malicious page. The `doUninstall()` function is particularly impactful as it executes SQL scripts that include `DROP TABLE` statements. The vulnerability is rooted in the lack of `SecurityUtils::validateCsrfToken()` calls in the affected component.

## Affected products

- Admidio Admidio <= 5.0.11

## Identifiers

- CVE-2026-53760
- GHSA-hm42-q32m-vj4f

## Timeline

- 2026-06-02: disclosed: Reported to Admidio by aisafe.io
- 2026-07-09: advisory: GitHub Advisory published

## References

- [https://api.github.com/users/adrgs](https://api.github.com/users/adrgs)
- [https://github.com/adrgs](https://github.com/adrgs)
- [https://api.github.com/users/adrgs/gists%7B/gist_id%7D](https://api.github.com/users/adrgs/gists%7B/gist_id%7D)
- [https://api.github.com/users/adrgs/repos](https://api.github.com/users/adrgs/repos)
- [https://avatars.githubusercontent.com/u/11564377?v=4](https://avatars.githubusercontent.com/u/11564377?v=4)
- [https://api.github.com/users/adrgs/events%7B/privacy%7D](https://api.github.com/users/adrgs/events%7B/privacy%7D)

## Related threats

- [Admidio improper access control in event registration](https://junglewise.ai/threats/cve-2026-117554-admidio-before-5-0-17-contains-an-improper-access-control)
- [Admidio information disclosure in RSS weblinks feed](https://junglewise.ai/threats/cve-2026-111916-admidio-before-5-0-16-contains-an-information-disclosure)
- [Admidio broken access control in inventory module](https://junglewise.ai/threats/cve-2026-111914-admidio-from-5-0-11-before-5-0-16-contains-a-broken-access)
- [Admidio authorization bypass via pdfl export mode](https://junglewise.ai/threats/cve-2026-111913-admidio-from-5-0-0-before-5-0-16-contains-an-authorization)
- [Admidio forum topic authorization bypass in ForumService::saveTopic()](https://junglewise.ai/threats/cve-2026-111912-admidio-from-5-0-0-before-5-0-16-contains-an-insecure-direct)