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

> An attacker can force an authenticated administrator to install, uninstall, or update plugins via CSRF, potentially destroying plugin data.

- **Severity:** Medium 5.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Sep 2026
- **Updated:** 9 Sep 2026
- **Also known as:** GHSA-hm42-q32m-vj4f

## What is CVE-2026-53760?

CVE-2026-53760 is a medium-severity vulnerability in admidio, published on 4 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-53760?

2 open source packages ship an affected version, including admidio/admidio.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `admidio/admidio` | Packagist | All versions to 5.0.11 | None |
| `admidio/admidio` | Packagist | All versions to 5.0.11 | None |

## How do I fix CVE-2026-53760?

No fix has been published for CVE-2026-53760 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-53760 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53760 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-53760 and fix it if it is affected.

What it is: CVE-2026-53760 is a medium-severity vulnerability in admidio, published on 4 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53760 exists.

Affected packages and fixed versions:
- admidio/admidio (Packagist): affected all versions up to 5.0.11; no fix listed
- admidio/admidio (Packagist): affected all versions up to 5.0.11; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-53760/ (Markdown: https://insights.sbomify.com/CVE-2026-53760/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-53760
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-53760
- OSV: https://osv.dev/vulnerability/CVE-2026-53760

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-53760/
Summaries are generated and may contain mistakes; the official description above is the record.