CVE-2026-33678
8.1 · HIGHOverview
CVE-2026-33678 is a high-severity vulnerability affecting vikunja vikunja. It was published on March 24, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, `TaskAttachment.ReadOne()` queries attachments by ID only (`WHERE id = ?`), ignoring the task ID from the URL path. The permission check in `CanRead()` validates access to the task specified in the URL, but `ReadOne()` 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.
Remediation
Check the references section for vendor advisories and patches from vikunja. Update vikunja to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| vikunja | vikunja | >= 0, < 2.2.1 | Affected |
Frequently Asked Questions
What is CVE-2026-33678?
CVE-2026-33678 is a high-severity vulnerability affecting vikunja vikunja. It was published on March 24, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2026-33678?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-33678?
Check the references section for vendor advisories and patches from vikunja. Update vikunja to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-33678?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-33678 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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