CVE-2026-40571

MEDIUM

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

Title source: cna
STIX 2.1

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

References (1)

Core 1
Core References

Scores

CVSS v4 5.3
EPSS 0.0024
EPSS Percentile 14.2%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-862
Status published
Products (1)
NamelessMC/Nameless = 2.2.4
Published Jun 02, 2026
Tracked Since Jun 02, 2026