Kimai is an open-source time tracking application. Prior to 2.58.0, POST /api/teams/{id}/members/{userId} and POST /api/teams/{id}/activities/{activityId} verify that a teamlead may edit the Team but do not verify access_user for the referenced User or view access for the referenced Activity. A teamlead can add users or activities outside the teamlead's manageable scope to an editable team, bypassing the narrower choices enforced by TeamEditForm and UserRepository::getQueryBuilderForFormType().
The resulting relationships can be trusted by RolePermissionManager::checkTeamAccessActivity() and other team-based authorization, visibility, reporting, and workflow logic. This issue is fixed in version 2.58.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/kimai/kimai/commit/31a8f887a5cda517db7b4320a7ad997c87d08601
security-advisories@github.com
https://github.com/kimai/kimai/pull/5952
security-advisories@github.com
https://github.com/kimai/kimai/releases/tag/2.58.0
security-advisories@github.com
https://github.com/kimai/kimai/security/advisories/GHSA-xv4r-4885-gwpg
security-advisories@github.com
https://www.kimai.org/en/security/ghsa-xv4r-4885-gwpg
security-advisories@github.com