{"id":"CVE-2026-33312","summary":"Read-only Vikunja users can delete project background images via broken object-level authorization","details":"Vikunja is an open-source self-hosted task management platform. Starting in version 0.20.2 and prior to version 2.2.0, the `DELETE /api/v1/projects/:project/background` endpoint checks `CanRead` permission instead of `CanUpdate`, allowing any user with read-only access to a project to permanently delete its background image. Version 2.2.0 fixes the issue.","aliases":["GHSA-564f-wx8x-878h","GO-2026-4795"],"modified":"2026-04-10T05:42:40.430619Z","published":"2026-03-20T14:42:14.137Z","related":["SUSE-SU-2026:1135-1"],"database_specific":{"cwe_ids":["CWE-863"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33312.json"},"references":[{"type":"WEB","url":"https://vikunja.io/changelog/vikunja-v2.2.0-was-released"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33312.json"},{"type":"ADVISORY","url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-564f-wx8x-878h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33312"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-vikunja/vikunja","events":[{"introduced":"6259dd8d42fd095a63623ffa3f23e2250e737b3f"},{"fixed":"b365be1881641dd2791d3dff4c26ad941c13cef6"}],"database_specific":{"versions":[{"introduced":"0.20.2"},{"fixed":"2.2.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33312.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}