{"id":"EUVD-2026-103303","revision":"b97baddf5e744322b7e2fac186215ecf","records":[{"revision":"b97baddf5e744322b7e2fac186215ecf","observedAt":"2026-10-30T01:56:39.541+00:00","statement":{"source":"euvd","id":"EUVD-2026-103303","aliases":["CVE-2026-111918","GHSA-mjqg-gwhm-xr66"],"title":"Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attacke…","description":"Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attackers can delete their Inbox after repointing default_project_id, then create empty-filter saved filters to persist cross-tenant references and amplify writes for denial of service.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","score":5.3,"severity":null}],"references":["https://github.com/go-vikunja/vikunja/security/advisories/GHSA-fprf-r6rv-xg99","https://www.vulncheck.com/advisories/vikunja-1.0.0-rc0-before-2.7.0-cross-tenant-task-position-writes-via-saved-filter-creation"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103303","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 17, 2026, 6:46:33 PM","dateUpdated":"Oct 19, 2026, 4:39:37 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-103303","identifiers":["EUVD-2026-103303","CVE-2026-111918","GHSA-mjqg-gwhm-xr66"]},"retained":false,"historicalAffected":[]}],"coverage":[]}