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Advisories

Vikunja before 2.7.1 Mass Assignment via Team external_id Field

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Severity
medium
Date
Affecting

  • vikunja >= 0, < 2.7.1

CWE
  • CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Credit
EclipsSec, l1ght-man
Description
Vikunja before 2.7.1 contains a mass assignment vulnerability that allows any authenticated user to set the read-only external_id field through the team create and update endpoints. Attackers can tag a team they create or administer as externally managed, permanently blocking removal of every member and causing SSO members to be dropped from the team at their next login.

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