PT-2026-78398 · Vikunja · Vikunja
CVSS v4.0
7.7
High
| Vector | AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
Vikunja versions prior to 2.4.1
Description
A principal-type confusion occurs when LinkSharing principals with id
N are treated as user principals with users.id == N due to three permission checks lacking type guards. This allows attackers possessing a link-share JWT to exploit id collisions in the autoincrement space to remove victims from teams, enumerate and delete victim bot users, or read team rosters.Recommendations
Update to a version newer than 2.4.0.
Exploit
Fix
IDOR
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Weakness Enumeration
Related Identifiers
Affected Products
Vikunja