Admidio up to 5.0.11 lists_show.php relation_type_list sql injection

Summaryinfo

A vulnerability classified as critical has been found in Admidio up to 5.0.11. The impacted element is an unknown function of the file lists_show.php. The manipulation of the argument relation_type_list leads to sql injection. This vulnerability is documented as CVE-2026-82655. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Admidio up to 5.0.11. It has been rated as critical. This issue affects some unknown processing of the file lists_show.php. The manipulation of the argument relation_type_list with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Admidio before 5.0.12 contains a blind SQL injection vulnerability in the relation_type_list parameter of lists_show.php that allows unauthenticated attackers to execute arbitrary SQL queries. Attackers can bypass authentication by providing a dummy UUID in role_list and inject SQL through relation_type_list to extract database contents including password hashes and user credentials.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-82655 since 08/30/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

By approaching the search of inurl:lists_show.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.0.12 eliminates this vulnerability.

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Productinfo

Name

• Admidio

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9
• 5.0.10
• 5.0.11

Website

• Product: https://github.com/Admidio/admidio/

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