CVE-2026-82655
Received Received - Intake

Blind SQL Injection in Admidio Before 5.0.12

Publication date: 2026-08-30

Last updated on: 2026-08-30

Assigner: VulnCheck

Description
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.

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Meta Information

Published
2026-08-30
Last Modified
2026-08-30
Generated
2026-08-30
AI Q&A
2026-08-30
EPSS Evaluated
N/A
NVD
CVE-2026-82655
EUVD
EUVD-2026-68241

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
admidio admidio to 5.0.12 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This is a blind SQL injection vulnerability in Admidio versions before 5.0.12. It exists in the relation_type_list parameter of lists_show.php. Attackers can inject malicious SQL queries without authentication by first providing a dummy UUID in role_list to bypass checks. This allows extraction of sensitive data like password hashes and user credentials from the database.

Detection Guidance

To detect this vulnerability, check if your Admidio instance is running a version before 5.0.12. Inspect network traffic for requests to lists_show.php with suspicious relation_type_list parameters containing SQL-like syntax such as quotes or semicolons. Use tools like SQLmap to test for blind SQL injection by sending crafted payloads to the parameter.

Impact Analysis

An attacker could exploit this to read your entire database, steal user credentials and password hashes, bypass authentication, or potentially escalate privileges to take over the application. It allows remote attackers to execute arbitrary SQL commands without needing any prior access.

Compliance Impact

This vulnerability likely violates compliance requirements for data protection and security. It enables unauthorized access to sensitive personal data (PII), which could lead to GDPR violations due to unauthorized data access and potential data breaches. HIPAA compliance may also be affected if protected health information is exposed.

Mitigation Strategies

Immediately upgrade Admidio to version 5.0.12 or later. If upgrading is not possible, apply input validation to the relation_type_list parameter to ensure it only accepts valid UUIDs. Replace direct SQL query construction with parameterized queries to prevent SQL injection. Restrict access to lists_show.php if possible.

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