Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attackers can delete their Inbox after repointing default_project_id, then create empty-filter saved filters to persist cross-tenant references and amplify writes for denial of service.
Metrics
Affected Vendors & Products
References
History
Tue, 20 Oct 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Go-vikunja
Go-vikunja vikunja |
|
| Vendors & Products |
Go-vikunja
Go-vikunja vikunja |
Mon, 19 Oct 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Sat, 17 Oct 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attackers can delete their Inbox after repointing default_project_id, then create empty-filter saved filters to persist cross-tenant references and amplify writes for denial of service. | |
| Title | Vikunja 1.0.0-rc0 before 2.7.0 Cross-Tenant Task Position Writes via Saved Filter Creation | |
| First Time appeared |
Vikunja
Vikunja vikunja |
|
| Weaknesses | CWE-863 | |
| CPEs | cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Vikunja
Vikunja vikunja |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-17T18:46:33.245Z
Updated: 2026-10-19T16:39:37.953Z
Reserved: 2026-10-17T12:18:55.463Z
Link: CVE-2026-111918
Updated: 2026-10-19T15:35:35.312Z
Status : Deferred
Published: 2026-10-17T19:16:34.403
Modified: 2026-10-19T21:14:14.150
Link: CVE-2026-111918
No data.