Vulnerability · Published May 7, 2026 · Assigned by GitHub_M

CVE-2026-41659Admidio: Hidden Profile Field Values Leaked via Blind Search Oracle in Member Assignment

Low 2.7

In plain English

A low-severity information exposure in admidio from Admidio. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)2.7Low

Exploit odds (30 days)0.3%top 82.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Admidio is an open-source user management solution. Prior to version 5.0.9, the member assignment DataTables endpoint (members_assignment_data.php) includes hidden profile fields (BIRTHDAY, STREET, CITY, POSTCODE, COUNTRY) in its SQL search condition regardless of field visibility settings. While the JSON output correctly suppresses hidden columns via isVisible() checks, the server-side search operates at the SQL level before any visibility filtering. This allows a role leader with assign-only permissions to infer hidden PII values by observing which users appear in search results for specific values. This issue has been patched in version 5.0.9.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	admidio/admidio	5.0.9	GHSA-68pr-7prh-mpv4

Affected products (as reported)

Vendor	Product	Versions
Admidio	admidio	< 5.0.9

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/Admidio/admidio/security/advisories/GHSA-68pr-7prh-mpv4 x_refsource_CONFIRM
https://github.com/Admidio/admidio/releases/tag/v5.0.9 x_refsource_MISC