References to Advisories, Solutions, and Tools

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Change History

Vikunja through 2.4.0 contains a principal-type confusion vulnerability where LinkSharing principals with id N are treated as user principals with users.id == N at three permission checks lacking type guards. Attackers with a link-share JWT can remove victims from teams, enumerate and delete victim bot users, or read team rosters by exploiting id collisions in the autoincrement space.

AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-639

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-32r8-5843-4qw2

https://www.vulncheck.com/advisories/vikunja-through-principal-type-confusion-via-linksharing

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