{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52820", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-08T18:11:06.661Z", "datePublished": "2026-09-15T10:37:17.720Z", "dateUpdated": "2026-09-15T12:42:21.215Z"}, "containers": {"cna": {"title": "Kimai: Timesheet PATCH/POST allows assigning to project outside user's team via query_builder OR-bypass", "problemTypes": [{"descriptions": [{"cweId": "CWE-639", "lang": "en", "description": "CWE-639: Authorization Bypass Through User-Controlled Key", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "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:L/VI:L/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/kimai/kimai/security/advisories/GHSA-vrr2-g9gh-c3jc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/kimai/kimai/security/advisories/GHSA-vrr2-g9gh-c3jc"}, {"name": "https://github.com/kimai/kimai/pull/5929", "tags": ["x_refsource_MISC"], "url": "https://github.com/kimai/kimai/pull/5929"}, {"name": "https://github.com/kimai/kimai/commit/976d38e8a4485a1c923ee7b5841849e91a06e849", "tags": ["x_refsource_MISC"], "url": "https://github.com/kimai/kimai/commit/976d38e8a4485a1c923ee7b5841849e91a06e849"}, {"name": "https://github.com/kimai/kimai/releases/tag/2.57.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/kimai/kimai/releases/tag/2.57.0"}, {"name": "https://www.kimai.org/en/security/ghsa-vrr2-g9gh-c3jc", "tags": ["x_refsource_MISC"], "url": "https://www.kimai.org/en/security/ghsa-vrr2-g9gh-c3jc"}], "affected": [{"vendor": "kimai", "product": "kimai", "versions": [{"version": "< 2.57.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T10:37:17.720Z"}, "descriptions": [{"lang": "en", "value": "Kimai is an open-source time tracking application. Prior to 2.57.0, PATCH /api/timesheets/{id} and POST /api/timesheets accept a user-controlled project identifier through TimesheetApiEditForm and FormTrait, and ProjectRepository::getQueryBuilderForFormType() places that identifier in an unconditional OR branch that bypasses the team access criteria. Any authenticated user with edit_own_timesheet can therefore assign an owned timesheet to a project outside the user's teams, persist unauthorized project attribution, and retrieve project and customer metadata through GET /api/timesheets/{id}?full=true. TimesheetTeamAccessValidator now checks changed project and activity associations against current team access. This issue is fixed in version 2.57.0."}], "source": {"advisory": "GHSA-vrr2-g9gh-c3jc", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-15T12:41:48.870713Z", "id": "CVE-2026-52820", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-15T12:42:21.215Z"}}]}}

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{}

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