CVE-2026-40571CWE-862

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

Medium · published June 2, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
30.9
In the wild
Unconfirmed
What it is

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. This means that authenticated low-privileged users can add reactions to private or blocking profile posts. Version 2.2.5 contains a patch.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
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
EPSS
0.00381 · 30.9th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-06-02T16:44Z
EPSS history
Timeline
  • 02 JUN 16:44Z
    NamelessMC: Reactions on private or blocking profile posts can be modified without proper authorization
    cvelistv5