Vulnerability in Admidio
CVE-2026-34381
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.005 · change: -0.001
Affected products
- Admidio — versions >= 5.0.0, < 5.0.8
Weakness classification (CWE)
References
- github.com/Admidio/admidio/security/advisories/GHSA-7fh7-8xqm-3g88 (Exploit, Mitigation, Vendor Advisory)
- github.com/Admidio/admidio/commit/5f770c1ca81a4f6b02136280cd63316a35aabaaf (Patch)
Frequently asked questions
- What is CVE-2026-34381?
- CVE-2026-34381 is a high-severity vulnerability in Admidio, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-03-31.
- How severe is CVE-2026-34381?
- High severity. CVSS v3 base score is 7.5 out of 10.