Arbitrary File Upload Affecting admidio/admidio package, versions <5.0.7
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PHP-ADMIDIOADMIDIO-15679936
- published18 Mar 2026
- disclosed16 Mar 2026
- creditarrester
Introduced: 16 Mar 2026
CVE-2026-32756 (opens in a new tab)How to fix?
Upgrade admidio/admidio to version 5.0.7 or higher.
Overview
admidio/admidio is a free open source user management system for websites of organizations and groups.
Affected versions of this package are vulnerable to Arbitrary File Upload through the UploadHandlerFile process. An attacker can execute arbitrary code on the server by uploading a malicious file with a disallowed extension after intentionally submitting an invalid CSRF token, which bypasses extension validation and cleanup. This is only exploitable if the attacker has authenticated access with upload permissions in the Documents & Files module.