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Description

Kimai is an open-source time tracking application. In versions 2.52.0 and below, the User Preferences API endpoint (PATCH /api/users/{id}/preferences) applies submitted preference values without checking the isEnabled() flag on preference objects. Although the hourly_rate and internal_rate fields are correctly marked as disabled for users lacking the hourly-rate role permission, the API ignores this restriction and saves the values directly. Any authenticated user can modify their own billing rates through this endpoint, resulting in unauthorized financial tampering affecting invoices and timesheet calculations. This issue has been fixed in version 2.53.0.

PUBLISHED Reserved 2026-04-13 | Published 2026-04-17 | Updated 2026-04-17 | Assigner GitHub_M




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Product status

< 2.53.0
affected

References

github.com/.../kimai/security/advisories/GHSA-qh43-xrjm-4ggp

github.com/kimai/kimai/releases/tag/2.53.0

cve.org (CVE-2026-40486)

nvd.nist.gov (CVE-2026-40486)

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