CVE-2026-123520

EUVD-2026-119405
Vikunja from 0.18.0 before 2.7.1 contains a privilege escalation vulnerability that allows team owners to gain admin or ownership of read-only shared projects by deleting accounts. Attackers can create a bot, add it to their team, and delete it through the bots endpoint, triggering ensureProjectAdminUser to promote read-only shares and lock out the real owner.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 23.04%
Common Weakness Enumeration
References
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hq66-9qg8-jwqg
https://www.vulncheck.com/advisories/vikunja-0.18.0-before-2.7.1-privilege-escalation-via-account-deletion