What’s Vulnerable › Vulnerabilities

CVE-2026-34381: Admidio: Unauthenticated Access to Role-Restricted documents via neutralized .htaccess

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-31 · updated 2026-10-06
• Weakness: CWE-284

Description

Admidio is an open-source user management solution. From version 5.0.0 to before version 5.0.8, Admidio relies on adm_my_files/.htaccess to deny direct HTTP access to uploaded documents. The Docker image ships with AllowOverride None in the Apache configuration, which causes Apache to silently ignore all .htaccess files. As a result, any file uploaded to the documents module regardless of the role-based permissions configured in the UI, is directly accessible over HTTP without authentication by anyone who knows the file path. The file path is disclosed in the upload response JSON. This issue has been patched in version 5.0.8.

Affected products

• admidio: from 5.0.0 before 5.0.8 — fixed in 5.0.8

How to fix

Upgrade to a fixed version: admidio 5.0.8. Check the vendor advisory for mitigations.

References

• https://github.com/Admidio/admidio/commit/5f770c1ca81a4f6b02136280cd63316a35aabaaf
• https://github.com/Admidio/admidio/security/advisories/GHSA-7fh7-8xqm-3g88
• https://github.com/Admidio/admidio/security/advisories/GHSA-7fh7-8xqm-3g88

Get alerted when CVE-2026-34381 or the next vulnerability affects your stack