CVE-2026-27116: Vikunja

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Vikunja Vikunja: before 2.0.0 (fixed in 2.0.0)

Published 2026-02-25. Last modified 2026-06-17.