CVE-2026-52823 Details
Description
Kimai is an open-source time tracking application. Prior to 2.58.0, TimesheetController exposes GET /api/timesheets/{id}/stop and GET /api/timesheets/{id}/restart, which reuse an authenticated browser session and perform state-changing operations through GET requests without a request-forgery defense. A remote attacker can cause a logged-in user to request either route from attacker-controlled content, stopping a running timesheet or restarting a historical entry to create and start a new timesheet without the user's consent. The unauthorized changes can corrupt time records, billing, reports, approvals, and audits. This issue is fixed in version 2.58.0.
A cross-site request forgery (CSRF) vulnerability has been identified in Kimai, an open-source time tracking application, in versions prior to 2.58.0. The issue arises in the TimesheetController, which exposes GET endpoints for stopping and restarting timesheets. These endpoints can be exploited by a remote attacker to manipulate a logged-in user's timesheet entries without their consent, potentially disrupting time records and related processes such as billing and reporting.
Users are advised to update to Kimai version 2.58.0 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 15, 2026CISA-ADP
Assessed Sep 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/kimai/kimai/commit/31a8f887a5cda517db7b4320a7ad997c87d08601 | [email protected] | Source CodeVendor |
| https://github.com/kimai/kimai/pull/5952 | [email protected] | Source CodeVendor |
| https://github.com/kimai/kimai/releases/tag/2.58.0 | [email protected] | Release NotesVendor |
| https://github.com/kimai/kimai/security/advisories/GHSA-r8vr-m544-qh4h | [email protected] | AdvisoryExploitRemedyVendor |
| https://www.kimai.org/en/security/ghsa-r8vr-m544-qh4h | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-352 | Cross-Site Request Forgery (CSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Kimai | <= 2.57.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 15, 2026 | CVE Modified | CISA-ADP |
| Sep 15, 2026 | New CVE Received | [email protected] |