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Vulnerability · Published Aug 12, 2026 · Assigned by GitHub_M

CVE-2026-47234Admidio writes session IDs and auto-login cookie values to application logs

Medium 4.4

In plain English

A medium-severity information exposure in admidio from Admidio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.2%top 93.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Admidio is an open-source user management solution. Prior to version 5.0.10, when debug logging is enabled, `Session::setCookie()` logs full cookie values and `Session::start()` logs the current session ID. In a real Admidio deployment this includes both the active session cookie and the persistent auto-login cookie. Anyone with access to the log sink can recover live bearer-style credentials from the logs. Version 5.0.10 contains a fix.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistadmidio/admidio5.0.10GHSA-mch8-wf3h-6x88

Affected products (as reported)

VendorProductVersions
Admidio admidio < 5.0.10

Weakness: CWE-200, CWE-532 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References