{"id":"CVE-2026-80197","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-80197","generatedAt":"2026-10-28T00:19:03.030Z","title":"Kimai before 2.57.0 contains an improper authorization vulnerability in the favorite timesheet add and remove endpoints that allows authenticated users to manipulate other users' bookmarks.","description":"Kimai before 2.57.0 contains an improper authorization vulnerability in the favorite timesheet add and remove endpoints that allows authenticated users to manipulate other users' bookmarks. Attackers can add or remove timesheet entries from another user's favorite list by referencing their timesheet identifier, enabling cross-user business-state tampering without administrative privileges.","published":"2026-08-26T05:18:27.000Z","lastModified":"2026-10-08T16:17:46.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-639"],"affected":[],"epss":{"score":0.00264,"percentile":0.18167,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/kimai/kimai/security/advisories/GHSA-j5mc-p8qg-39j7","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/kimai-before-2.57.0-improper-authorization-via-favorite-endpoints","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80197","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}