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CVE-2026-32756

Admidio: Unrestricted File Upload via CSRF Token Validation Bypass in Documents & Files Module

Published: Mar 19, 2026Updated: Mar 23, 2026 Sources: CVE List NVD GHSACWE-434
NVD MITRE
8.8CVSSHIGH
EPSS Score
1.0%
Top 42.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-434

Affected Products

admidioAdmidio
On-prem
Enterprise Software / collaboration-groupware
admidio/admidioPackagistOSS Libraries
admidioadmidio
On-prem
Enterprise Software / collaboration-groupware
admidiooss-projectEnterprise Softwareaka admidio/admidio
packagistpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://github.com/Admidio/admidio/security/advisories/GHSA-95cq-p4w2-32w5
github.com
https://github.com/Admidio/admidio/releases/tag/v5.0.7
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-32756
nvd.nist.gov
and 1 more references View all →

Timeline

Published
Mar 19, 2026
Last Updated
Mar 23, 2026

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