---
id: CVE-2026-82655
title: >-
  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
summary: >-
  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 provi…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-89
published: '2026-08-30'
updated: '2026-08-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82655'
references:
  - url: 'https://github.com/Admidio/admidio/security/advisories/GHSA-p5cp-mhvx-w392'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/admidio-before-5.0.12-sql-injection-via-relation-type-list
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-08-30T23:59:28.861Z'
epss: 0.00561
epssPercentile: 0.44302
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.