CVEvulnerability

CVE-2026-34460

5.4 MEDIUM Published 2026-06-02 Modified 2026-07-22 Official page ↗
Status
Deferred
Published
2026-06-02
Last modified
2026-07-22
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weaknesses
CWE-302, CWE-346, CWE-352

Description

NamelessMC is website software for Minecraft servers. In versions 2.2.4 and prior, the OAuth callback handling does not validate the state parameter server-side before exchanging the authorization code. This allows an attacker to capture a valid OAuth callback URL for their own account and cause a victim's browser to navigate to it, resulting in the victim's session being authenticated as the attacker-linked account (OAuth login CSRF / session swapping). This is patched in version 2.2.5.

Related

Weakness · CWE (3)

  • CWE-302 Authentication Bypass by Assumed-Immutable Data weakness
  • CWE-346 Origin Validation Error weakness
  • CWE-352 Cross-Site Request Forgery weakness

References