{"id":"CVE-2026-52823","state":"PUBLISHED","title":"Kimai: Login CSRF in Kimai Timesheet Stop and Restart API Endpoints Allows Unauthorized State Changes","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.","publishedAt":"2026-09-15T10:41:17.840Z","updatedAt":"2026-09-15T13:52:24.796Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["kimai kimai"],"affected":[{"vendor":"kimai","product":"kimai","versions":[{"version":"< 2.58.0","status":"affected"}]}],"references":["https://github.com/kimai/kimai/security/advisories/GHSA-r8vr-m544-qh4h","https://github.com/kimai/kimai/pull/5952","https://github.com/kimai/kimai/commit/31a8f887a5cda517db7b4320a7ad997c87d08601","https://github.com/kimai/kimai/releases/tag/2.58.0","https://www.kimai.org/en/security/ghsa-r8vr-m544-qh4h"],"weaknesses":["CWE-352"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/52xxx/CVE-2026-52823.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52823","state":"PUBLISHED","datePublished":"2026-09-15T10:41:17.840Z","dateUpdated":"2026-09-15T13:52:24.796Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-08T18:11:06.661Z"},"containers":{"cna":{"title":"Kimai: Login CSRF in Kimai Timesheet Stop and Restart API Endpoints Allows Unauthorized State Changes","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"kimai","product":"kimai","versions":[{"version":"< 2.58.0","status":"affected"}]}],"references":[{"url":"https://github.com/kimai/kimai/security/advisories/GHSA-r8vr-m544-qh4h","name":"https://github.com/kimai/kimai/security/advisories/GHSA-r8vr-m544-qh4h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/kimai/kimai/pull/5952","name":"https://github.com/kimai/kimai/pull/5952","tags":["x_refsource_MISC"]},{"url":"https://github.com/kimai/kimai/commit/31a8f887a5cda517db7b4320a7ad997c87d08601","name":"https://github.com/kimai/kimai/commit/31a8f887a5cda517db7b4320a7ad997c87d08601","tags":["x_refsource_MISC"]},{"url":"https://github.com/kimai/kimai/releases/tag/2.58.0","name":"https://github.com/kimai/kimai/releases/tag/2.58.0","tags":["x_refsource_MISC"]},{"url":"https://www.kimai.org/en/security/ghsa-r8vr-m544-qh4h","name":"https://www.kimai.org/en/security/ghsa-r8vr-m544-qh4h","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-352","lang":"en","description":"CWE-352: Cross-Site Request Forgery (CSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-15T10:41:17.840Z"},"source":{"advisory":"GHSA-r8vr-m544-qh4h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-15T13:25:10.333245Z","id":"CVE-2026-52823","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-15T13:52:24.796Z"}}]}}}