CVE-2026-35443

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

State: Published
Severity: 5.3 Medium
Published: Jun 2, 2026
Updated: Jun 2, 2026
Reserved: Apr 2, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	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	GitHub_M

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
NamelessNamelessMC	= 2.2.4Affected

References

https://github.com/NamelessMC/Nameless/security/advisories/GHSA-wcrf-5gcp-pf64

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