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CVE-2026-40314

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

MEDIUM
6.9
CVSS Score
Published: June 2, 2026 at 04:08 PM UTC
Updated: July 21, 2026 at 07:26 PM UTC
1 product affected across 1 vendorNameless

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM
Source: cverecord
https://github.com/NamelessMC/Nameless/security/advisories/GHSA-55q9-8qm3-4grc

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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