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Advisory record · GHSA-c7xm-r6vj-8vg6

Admidio Missing Minimum Administrator Check in Role Membership Removal

CVSS 5.2 MediumEPSS 0.0029 · 21st percentile

Published by the GitHub Advisory Database at 29 Apr 2026, 21:53 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
admidio/admidioPackagist<5.0.95.0.9
Identifiers
GHSA-c7xm-r6vj-8vg6 · CVE-2026-41662 · PKSA-c3x4-7b97-m7w3
Weakness (CWE)
CWE-754
Tags
Published
29 Apr 2026
Updated
8 May 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Admidio versions before 5.0.9 do not check whether removing a user from the administrator role leaves no administrators. An attacker who holds an administrator account can remove the other administrators, and if two administrators remove each other, the system is left with none. This requires administrator access, and recovery reportedly needs direct database access. Upgrade to Admidio 5.0.9, where the issue is fixed.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.2 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 21st percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:25 UTC First seen by agentprime
  2. 31 Oct 2026, 14:25 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.