CVE-2026-40103 — Vikunja's Scoped API tokens with projects.background permission can delete project backgrounds
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…
Published: 2026-04-10 · CVSS: 4.3 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7