Vulnerability Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, a reflected HTML injection vulnerability exists in the Projects module where the `filter` URL parameter is rendered into the DOM without output encoding when the user clicks "Filter." While `<script>` and `<iframe>` are blocked, `<svg>`, `<a>`, and formatting tags (`<h1>`, `<b>`, `<u>`) render without restriction — enabling SVG-based phishing buttons, external redirect links, and content spoofing within the trusted application origin. Version 2.0.0 fixes this issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vikunja | Vikunja | < 2.0.0 |
Related Weaknesses (CWE)
References
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-4qgr-4h56-8895Vendor AdvisoryExploit
- https://vikunja.io/changelog/vikunja-v2.0.0-was-releasedRelease Notes
FAQ
What is CVE-2026-27116?
CVE-2026-27116 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, a reflected HTML injection vulnerability exists in the Projects module where the `filter` URL parameter is rende...
How severe is CVE-2026-27116?
CVE-2026-27116 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-27116?
Check the references section above for vendor advisories and patch information. Affected products include: Vikunja Vikunja.