CVE-2026-27116

MEDIUM 6.1EPSS 0.2%

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 v3.1: 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v3.1: 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.22% chance of exploitation in the next 30 days, 12th percentile
Published: 2026-02-25

Proof-of-concept exploits (1)

advisories/GHSA-4qgr-4h56-8895

References

CVE Record
NVD entry

CVE-2026-27116

Proof-of-concept exploits (1)

References

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