Findings

CVE-2026-33678

Vikunja is an open-source self-hosted task management platform.

Published Mar 24, 2026 · updated Jun 17, 2026 · vikunja vikunja

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, queries attachments by ID only ( ), ignoring the task ID from the URL path. The permission check in validates access to the task specified in the URL, but loads a different attachment that may belong to a task in another project. This allows any authenticated user to download or delete any attachment in the system by providing their own accessible task ID with a target attachment ID. Attachment IDs are sequential integers, making enumeration trivial. Version 2.2.1 patches the issue.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 24, 2026 · NIST NVD

    Detected

    Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, queries attachments by ID only ( ), ignoring the task ID from the URL path. The permission check in validates access to the task specified in the URL, but loads a different attachment that may belong to a task in another project. This allows any authenticated user to download or delete any attachment in the sys

  2. Jun 17, 2026 · NIST NVD

    Updated

    Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, queries attachments by ID only ( ), ignoring the task ID from the URL path. The permission check in validates access to the task specified in the URL, but loads a different attachment that may belong to a task in another project. This allows any authenticated user to download or delete any attachment in the sys

Affected

  • cpe vikunja/vikunjaversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-33678

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-33678

    Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, queries attachments by ID only ( ), ignoring the task ID from the URL path. The permission check in validates access to the task specified i

    nvd.nist.gov

References