CVE-2026-80197

EUVD-2026-66219
Kimai before 2.57.0 contains an improper authorization vulnerability in the favorite timesheet add and remove endpoints that allows authenticated users to manipulate other users' bookmarks. Attackers can add or remove timesheet entries from another user's favorite list by referencing their timesheet identifier, enabling cross-user business-state tampering without administrative privileges.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 10.85%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
kimaikimai
𝑥
< 2.57.0
CNA
Common Weakness Enumeration
References
https://github.com/kimai/kimai/security/advisories/GHSA-j5mc-p8qg-39j7
https://www.vulncheck.com/advisories/kimai-before-2.57.0-improper-authorization-via-favorite-endpoints