CVE-2026-47226
Received Received - Intake

Authenticated File Deletion in Admidio via Folder UUID Parameter

Vulnerability report for CVE-2026-47226, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: GitHub, Inc.

Description

Admidio is an open-source user management solution. Prior to version 5.0.10, an authenticated Admidio member with upload rights on any one folder can permanently delete files from folders where they have only view access. The authorization check at the top of `modules/documents-files.php` evaluates upload rights against the attacker-supplied `folder_uuid` URL parameter β€” not the file's actual parent folder. The `file_delete` handler then only verifies view rights on the file's real location, never upload rights. By passing a folder they legitimately own in `folder_uuid` while targeting a file in a restricted folder via `file_uuid`, an attacker bypasses the upload-right check entirely and permanently deletes the file. This is an incomplete fix of GHSA-rmpj-3x5m-9m5f, which was patched in v5.0.7 but remains exploitable in v5.0.9. User should upgrade to v5.0.10 to receive an updated fix.

CVSS Scores

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Meta Information

Published
2026-08-12
Last Modified
2026-08-12
Generated
2026-08-12
AI Q&A
2026-08-12
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
admidio admidio From 5.0.0 (inc) to 5.0.6 (inc)
admidio admidio 5.0.7
admidio admidio 5.0.9
admidio admidio 5.0.10

Helpful Resources

Exploitability

CWE
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KEV
KEV Icon
CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

This vulnerability in Admidio allows an authenticated user with upload rights on any folder to bypass authorization checks and permanently delete files from folders where they only have view access. The issue occurs because the system incorrectly validates upload rights based on a user-supplied folder UUID parameter rather than the actual parent folder of the target file.

Detection Guidance

To detect this vulnerability, review Admidio file deletion logs for unauthorized file deletions. Check if users with view-only access are deleting files. Inspect network traffic for GET requests to deletion endpoints like documents-files.php with folder_uuid or file_uuid parameters.

Impact Analysis

An attacker could exploit this to permanently delete files they should only be able to view, leading to data loss, destruction of shared documents, and potential compliance violations. The impact includes irreversible deletion of critical files and folders.

Compliance Impact

This vulnerability could lead to unauthorized data deletion, violating compliance requirements for data integrity and protection. GDPR and HIPAA require safeguards against unauthorized data destruction, which this flaw undermines.

Mitigation Strategies

Immediately upgrade Admidio to version 5.0.10 or later to apply the security fix. Review and restrict user permissions to ensure only authorized users have upload rights. Monitor file deletion activities for suspicious behavior.

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