admidio up to 5.0.8 User Management Role::stopMembership unusual condition

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in admidio up to 5.0.8. Affected by this vulnerability is the function Role::stopMembership of the component User Management Handler. Executing a manipulation can lead to unusual condition. This vulnerability appears as CVE-2026-41662. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in admidio up to 5.0.8 and classified as problematic. This vulnerability affects the function Role::stopMembership of the component User Management Handler. The manipulation with an unknown input leads to a unusual condition vulnerability. The CWE definition for the vulnerability is CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. As an impact it is known to affect integrity, and availability. CVE summarizes:

Admidio is an open-source user management solution. Prior to version 5.0.9, Role::stopMembership() does not verify whether removing a user from the administrator role leaves zero administrators. The deprecated Membership::stopMembership() contains this safety check, but the current code path bypasses it. Any administrator can remove the last remaining other administrator, locking the entire system out of administrative access. The exploit does not require concurrent requests; sequential removals produce the same result. This issue has been patched in version 5.0.9.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-41662 since 04/22/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 5.0.9 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.8
VulDB Temp Score: 3.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.2
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unusual condition
CWE: CWE-754
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: admidio 5.0.9

Timelineinfo

04/22/2026 CVE reserved
05/07/2026 +15 days Advisory disclosed
05/07/2026 +0 days VulDB entry created
05/07/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-c7xm-r6vj-8vg6
Status: Confirmed

CVE: CVE-2026-41662 (🔒)
GCVE (CVE): GCVE-0-2026-41662
GCVE (VulDB): GCVE-100-361768

Entryinfo

Created: 05/07/2026 07:28
Changes: 05/07/2026 07:28 (65)
Complete: 🔍
Cache ID: 216::103

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