CVE-2026-35443CWE-862

NamelessMC: Forum reactions bypass the "view own topics only" restriction

Medium · published June 2, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
30.9
In the wild
Unconfirmed
What it is

NamelessMC is website software for Minecraft servers. In version 2.2.4, `modules/Forum/classes/ForumPostReactionContext.php` only verifies that the caller can view the forum, but it does not re-enforce topic-level `view_other_topics` authorization. As a result, in forums where users may enter the forum but may only view their own topics, reactions can still be read and modified on other users' topics. Version 2.2.5 fixes the issue.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00381 · 30.9th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-06-02T15:50Z
EPSS history
Timeline
  • 02 JUN 15:50Z
    NamelessMC: Forum reactions bypass the "view own topics only" restriction
    cvelistv5