Auth bypass in Namelessmc Nameless

CVE-2026-35443

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.

Vulnerability class: Broken Access Control

EPSS: 0.002 (14.3th percentile) — read the EPSS interpretation.