Moderate severityNVD Advisory· Published Feb 25, 2026· Updated Feb 25, 2026
Vikunja has Reflected HTML Injection via filter Parameter in Projects Module
CVE-2026-27116
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 ` and are blocked, , , and formatting tags (, , `) 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.vikunja.io/apiGo | <= 0.24.6 | — |
Affected products
3- ghsa-coords2 versions
<= 0.24.6+ 1 more
- (no CPE)range: <= 0.24.6
- (no CPE)range: < 0.0.20260317T205859-150000.1.152.1
- go-vikunja/vikunjav5Range: < 2.0.0
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-4qgr-4h56-8895ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-27116ghsaADVISORY
- cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Scripting_Prevention_Cheat_Sheet.htmlghsaWEB
- github.com/go-vikunja/vikunja/commit/a42b4f37bde58596a3b69482cd5a67641a94f62dghsaWEB
- github.com/go-vikunja/vikunja/releases/tag/v2.0.0ghsaWEB
- github.com/go-vikunja/vikunja/security/advisories/GHSA-4qgr-4h56-8895ghsax_refsource_CONFIRMWEB
- vikunja.io/changelog/vikunja-v2.0.0-was-releasedghsax_refsource_MISCWEB
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