CVE-2026-111921
Medium · CVSS 5.3Published 2026-10-17
CVSS
5.3
Medium
EPSS
—
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-111921?
Vikunja 0.13.0 before 2.7.0 contains an incorrect authorization vulnerability that allows project members with Write permission to delete admin-tier link shares because the delete permission check reads an unloaded share object. Attackers can send DELETE requests to the v1 or v2 projects shares endpoints with sequential share IDs to revoke admin links and invalidate existing share sessions.
CVSS Score Explained
CVSS 5.3 is Medium severity. Exploitation usually requires some specific conditions (local access, user interaction, or a particular config). Still worth patching in your next maintenance window.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
- ›https://github.com/go-vikunja/vikunja/security/advisories/GHSA-fmmf-xq98-g327
- ›https://www.vulncheck.com/advisories/vikunja-0.13.0-before-2.7.0-incorrect-authorization-in-link-share-deletion
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