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Advisories

Vikunja before 2.7.1 Information Disclosure via Team Self-Removal Endpoint

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Severity
high
Date
Affecting

  • vikunja >= 0, < 2.7.1

CWE
  • CWE-204 Observable Response Discrepancy
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
Vikunja before 2.7.1 contains an information disclosure vulnerability that allows authenticated users to determine whether private teams exist by calling the team member self-removal endpoint. Attackers can send DELETE requests to /teams/{id}/members/{own username} for arbitrary team ids and use the distinguishable responses to learn if a team exists, is SSO-managed, or has a single member.

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