Vulnerability · Published Jun 2, 2026 · Assigned by GitHub_M

CVE-2026-33398Authenticated users can read hidden forum posts through `/forum/get_quotes`

High 7.1

In plain English

A high-severity security flaw in Nameless from NamelessMC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.2%top 86.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
NamelessMC	Nameless	= 2.2.4

Weakness: CWE-285 · Vector: 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

References

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