CVE-2026-82657

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductAdmidio

PublishedAug 30, 2026

First seenAug 30, 2026

Weakness typeCWE-200Sensitive information exposure

How to fix

Update

Admidio admidio5.0.12 or later

Vendor advisories

github.com/Admidio/admidio/security/advisories/GHSA-mg9h-42f8-2pmm

Affected products

Product	Affected versions	Fixed in
Admidio admidio	v < 5.0.12	5.0.12

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