CVE-2026-27116
Vikunja has Reflected HTML Injection via filter Parameter in Projects Module
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 CWE-80 |
| Vendor | go-vikunja |
| Product | vikunja |
| Published | Feb 25, 2026 |
| Last Updated | Feb 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
go-vikunja / vikunja
< 2.0.0