CVE-2026-111912CWE-639

CVE-2026-111912

Medium · published October 17, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
7.3
In the wild
Unconfirmed
What it is

Admidio from 5.0.0 before 5.0.16 contains an insecure direct object reference vulnerability in ForumService::saveTopic() that allows authenticated members to modify other users' forum topics. Attackers can replace the topic_uuid parameter in their own topic_save request, reusing their CSRF token, to overwrite the victim topic's title and first post.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00181 · 7.3th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-17T23:16Z
References (2)
https://github.com/Admidio/admidio/security/advisories/GHSA-8256-4wm7-f628 · [email protected]https://www.vulncheck.com/advisories/admidio-5.0.0-before-5.0.16-idor-via-forum-topic-update · [email protected]
EPSS history
Timeline
  • 19 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 17 OCT 18:46Z
    Admidio 5.0.0 before 5.0.16 IDOR via Forum Topic Update
    cvelistv5
  • 17 OCT 18:46Z
    Admidio 5.0.0 before 5.0.16 IDOR via Forum Topic Update
    cvelistv5