CVE-2026-40314 MEDIUM

CVE-2026-40314: NamelessMC: Reactions on private or blocking profile posts can be read and modified without proper authorization

Vendor Namelessmc

Product Nameless

Weakness CWE-862 · Missing authorization

Published June 2, 2026

Last update June 2, 2026

View on NVD All CVEs

CVSS base score

6.9/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality —

Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 2, 2026 CVE published

June 2, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-40314 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html

Related vulnerabilities

CVE-2026-40314: NamelessMC: Reactions on private or blocking profile posts can be read and modified without proper authorization

01Description

02Disclosure timeline

03References

04Related CVE