Privilege escalation in Go-Vikunja Vikunja
CVE-2026-123520
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.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-hq66-9qg8-jwqg) (vendor-advisory)
- VulnCheck Advisory: Vikunja 0.18.0 before 2.7.1 Privilege Escalation via Account Deletion (third-party-advisory)
Frequently asked questions
- What is CVE-2026-123520?
- CVE-2026-123520 is a high-severity vulnerability in Go-Vikunja Vikunja, classified under Improper Privilege Management. CVSS score: 7.1/10. Published 2026-11-08.
- How severe is CVE-2026-123520?
- High severity. CVSS v3 base score is 7.1 out of 10.