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Advisories

Vikunja before 2.6.0 Authentication Bypass via Unthrottled API

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severity
high
date
Affecting

  • vikunja >= 0, < 2.6.0

CWE
  • CWE-307 Improper Restriction of Excessive Authentication Attempts
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
JellowBeanz26
Description
Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding attacks without throttling restrictions.

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