{"id":"CVE-2026-84805","state":"PUBLISHED","title":"Kimai 2.61.0 before 2.63.0 Authentication Bypass via API","description":"Kimai versions from 2.61.0 before 2.63.0 fail to disable admin-only work-contract preferences for low-privilege users in the PATCH /api/users/{id}/preferences endpoint. Although the web interface gates these employment-contract fields behind the contract_other_profile admin permission, the WorkContractPreferenceSubscriber (introduced in 2.61.0) registers the preferences as enabled without a permission check, so an authenticated regular user can use the API to modify their own admin-only work-contract data. The issue is fixed in 2.63.0 by applying the same permission check to the API endpoint.","publishedAt":"2026-09-02T11:11:18.388Z","updatedAt":"2026-09-02T13:11:21.797Z","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":"VulnCheck"},"assigner":"VulnCheck","products":["kimai kimai"],"affected":[{"vendor":"kimai","product":"kimai","defaultStatus":"unaffected","versions":[{"version":"2.61.0","status":"affected","lessThan":"2.63.0","versionType":"semver"},{"version":"2.63.0","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/kimai/kimai/security/advisories/GHSA-5mpc-5cg2-g99r","https://www.vulncheck.com/advisories/kimai-2.61.0-before-2.63.0-authentication-bypass-via-api"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/84xxx/CVE-2026-84805.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-84805","state":"PUBLISHED","datePublished":"2026-09-02T11:11:18.388Z","dateUpdated":"2026-09-02T13:11:21.797Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-02T10:19:32.991Z"},"containers":{"cna":{"title":"Kimai 2.61.0 before 2.63.0 Authentication Bypass via API","descriptions":[{"lang":"en","value":"Kimai versions from 2.61.0 before 2.63.0 fail to disable admin-only work-contract preferences for low-privilege users in the PATCH /api/users/{id}/preferences endpoint. Although the web interface gates these employment-contract fields behind the contract_other_profile admin permission, the WorkContractPreferenceSubscriber (introduced in 2.61.0) registers the preferences as enabled without a permission check, so an authenticated regular user can use the API to modify their own admin-only work-contract data. The issue is fixed in 2.63.0 by applying the same permission check to the API endpoint."}],"affected":[{"vendor":"kimai","product":"kimai","defaultStatus":"unaffected","versions":[{"version":"2.61.0","status":"affected","lessThan":"2.63.0","versionType":"semver"},{"version":"2.63.0","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/kimai/kimai/security/advisories/GHSA-5mpc-5cg2-g99r","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-5mpc-5cg2-g99r)"},{"url":"https://www.vulncheck.com/advisories/kimai-2.61.0-before-2.63.0-authentication-bypass-via-api","name":"VulnCheck Advisory: Kimai 2.61.0 before 2.63.0 Authentication Bypass via API","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","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","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-02T11:11:18.388Z"},"datePublic":"2026-08-19T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*","versionStartIncluding":"2.61.0","versionEndExcluding":"2.63.0"}]}]}],"credits":[{"lang":"en","value":"Muhammad-Tayab","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-02T13:09:33.675868Z","id":"CVE-2026-84805","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":"2026-09-02T13:11:21.797Z"}}]}}}