CVE-2026-82657CWE-200information-disclosure

CVE-2026-82657

High · published August 30, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
38.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00451 · 38.3th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-08-30T19:16Z
References (3)
https://github.com/Admidio/admidio/security/advisories/GHSA-mg9h-42f8-2pmm · [email protected]https://www.vulncheck.com/advisories/admidio-before-5.0.12-authentication-bypass-via-rss-feeds · [email protected]https://github.com/Admidio/admidio/security/advisories/GHSA-mg9h-42f8-2pmm · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 01 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 30 AUG 14:33Z
    Admidio before 5.0.12 Authentication Bypass via RSS feeds
    cvelistv5