CVE-2026-40314

NamelessMC: Reactions on private or blocking profile posts can be read and modified without proper authorization

State: Published
Severity: 6.9 Medium
Published: Jun 2, 2026
Updated: Jun 2, 2026
Reserved: Apr 10, 2026

Description

NamelessMC is website software for Minecraft servers. In version 2.2.4,`core/classes/Misc/ProfilePostReactionContext.php` only verifies that the wall post exists and does not enforce blocked/private-profile visibility. `modules/Core/queries/reactions.php` allows unauthenticated GET requests for reaction details. This means that unauthenticated visitors can read reaction participants and timestamps for private profile posts and uthenticated low-privileged users can add reactions to private or blocking profile posts. Version 2.2.5 fixes the issue.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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-55q9-8qm3-4grc

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