Description
Vikunja before 2.6.0 fails to validate that user-supplied project_view_id in task-position requests belongs to the task's project. Authenticated attackers can insert task position rows into arbitrary other tenant project views via POST or PUT task-position endpoints.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| go-vikunja | vikunja | < 2.6.0 | 2.6.0 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | code.vikunja.io/api | < 2.6.0 | 2.6.0 | GHSA-w39f-h553-h2mx |
| Go | code.vikunja.io/api | all versions | — | GO-2026-6755 |
References
- GitHub Security Advisory (GHSA-w39f-h553-h2mx) vendor-advisory
- VulnCheck Advisory: Vikunja before 2.6.0 Broken Object-Level Authorization via task-position third-party-advisory