Vulnerability · Published Aug 30, 2026 · Assigned by VulnCheck
CVE-2026-82657Admidio before 5.0.12 Authentication Bypass via RSS feeds
High 7.5
In plain English
A high-severity information exposure in admidio from Admidio. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- GitHub Security Advisory (GHSA-mg9h-42f8-2pmm) vendor-advisory
- VulnCheck Advisory: Admidio before 5.0.12 Authentication Bypass via RSS feeds third-party-advisory