CVEvulnerability

CVE-2026-28268

9.8 CRITICAL Published 2026-02-27 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-02-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-459, CWE-640

Description

Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password reset tokens to be reused indefinitely. Due to a failure to invalidate tokens upon use and a critical logic bug in the token cleanup cron job, reset tokens remain valid forever. This allows an attacker who intercepts a single reset token (via logs, browser history, or phishing) to perform a complete, persistent account takeover at any point in the future, bypassing standard authentication controls. Version 2.1.0 contains a patch for the issue.

Affected configurations

• vikunja vikunja (< 2.1.0)

Related

Weakness · CWE (2)

  • CWE-459 Incomplete Cleanup weakness
  • CWE-640 Weak Password Recovery Mechanism for Forgotten Password weakness

References