---
id: CVE-2026-82657
title: >-
  Admidio before 5.0.12 fails to enforce login-only module restrictions in RSS
  feed endpoints for forum and announcements modules
summary: >-
  Admidio before 5.0.12 fails to enforce login-only module restrictions in RSS
  feed endpoints for forum and announcements modules. Unauthenticated attackers
  can retrieve forum topics and announcements by sending GET requests to
  rss/forum.p…
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-200
published: '2026-08-30'
updated: '2026-08-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82657'
references:
  - url: 'https://github.com/Admidio/admidio/security/advisories/GHSA-mg9h-42f8-2pmm'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/admidio-before-5.0.12-authentication-bypass-via-rss-feeds
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-08-30T23:59:28.942Z'
epss: 0.00451
epssPercentile: 0.36563
---

## Overview

Admidio before 5.0.12 fails to enforce login-only module restrictions in RSS feed endpoints for forum and announcements modules. Unauthenticated attackers can retrieve forum topics and announcements by sending GET requests to rss/forum.php or rss/announcements.php, disclosing titles, full post text, author names, and timestamps.

## Remediation

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