CVE-2026-33398

Authenticated users can read hidden forum posts through `/forum/get_quotes`

State: Published
Severity: 7.1 High
Published: Jun 2, 2026
Updated: Jun 2, 2026
Reserved: Mar 19, 2026

Description

NamelessMC is website software for Minecraft servers. In version 2.2.4, `modules/Forum/pages/forum/get_quotes.php` only checks whether the caller is logged in, then reads a post by attacker-controlled `post` ID and returns its content. The backend helper in `modules/Forum/classes/Forum.php` does not enforce forum or topic ACLs. In contrast, the normal topic page in `modules/Forum/pages/forum/view_topic.php` enforces forum visibility and `view_other_topics`. Any low-privileged authenticated user can enumerate post IDs and read content from hidden, private, or staff-only forums. Version 2.2.5 fixes the issue.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-285 Improper Authorization

Affected Products

Product	Versions
NamelessNamelessMC	= 2.2.4Affected

References

https://github.com/NamelessMC/Nameless/security/advisories/GHSA-2r6x-cv4f-h8fx

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