CVE-2026-82657

8.7 highEPSS 0.5%

High (8.7). EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.7 high

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

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2026-08-30
Modified: 2026-08-31
Record from: the NVD, synced 2026-10-19

References

https://github.com/Admidio/admidio/security/advisories/GHSA-mg9h-42f8-2pmm
https://www.vulncheck.com/advisories/admidio-before-5.0.12-authentication-bypass-via-rss-feeds
https://github.com/Admidio/admidio/security/advisories/GHSA-mg9h-42f8-2pmm

Check your stack JSON