23 Oct 2026 15:48:27 UTC
Kimai: Improper Authorization in Kimai Activity Creation with Preset Project Allows Creation Under Unauthorized Projects
cve-program · CVE-2026-52821 · Published
CVE-2026-52821
kimai · Vulnerability
CVSS 4.0 5.3 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-52821
PublishedKimai is an open-source time tracking application. Prior to 2.57.0, GET or POST requests to /en/admin/activity/create/{project} and /en/admin/project/create/{customer} require only the generic create_activity or create_project capability and do not verify edit access to the supplied Project or Customer object. A user who knows a valid project.id or customer identifier can use the preset-parent creation logic in src/Controller/ActivityController.php or src/Controller/ProjectController.php to persist a new child business object under an unauthorized parent, polluting project or customer configuration and influencing later time-entry, rate, reporting, and billing behavior. This issue is fixed in version 2.57.0.
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