{"id":"CVE-2026-40103","revision":"7d24f801e5a4461fa69ab35ca3d68857","records":[{"revision":"7d24f801e5a4461fa69ab35ca3d68857","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-40103","aliases":[],"title":"Vikunja's Scoped API tokens with projects.background permission can delete project backgrounds","description":"Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's scoped API token enforcement for custom project background routes is method-confused. A token with only projects.background can successfully delete a project background, while a token with only projects.background_delete is rejected. This is a scoped-token authorization bypass. This vulnerability is fixed in 2.3.0.","state":0,"publishedAt":"2026-04-10T16:12:27.603+00:00","modifiedAt":"2026-04-15T14:45:18.303+00:00","affected":[{"ecosystem":"Vendor product","name":"vikunja","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"go-vikunja\",\n                    \"product\": \"vikunja\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/go-vikunja/vikunja/security/advisories/GHSA-v479-vf79-mg83","https://github.com/go-vikunja/vikunja/pull/2584","https://github.com/go-vikunja/vikunja/commit/6a0f39b252a81fa4b19dc56dc889183acc9225ae","https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-40103","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-40103","identifiers":["CVE-2026-40103"]},"retained":false,"historicalAffected":[]}],"coverage":[]}