CVE-2026-35600
Medium
Description
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, task titles are embedded directly into Markdown link syntax in overdue email notifications without escaping Markdown special characters. When rendered by goldmark and sanitized by bluemonday (which allows <a> and <img> tags), injected Markdown constructs produce phishing links and tracking pixels in legitimate notification emails. This vulnerability is fixed in 2.3.0.
SeverityMedium
CVSS5.4
Exploit probability—
ProductVikunja
PublishedApr 10, 2026
First seenApr 10, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- vikunja vikunja2.3.0 or later
- code.vikunja.io/api2.3.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vikunja vikunja | v < 2.3.0 | 2.3.0 |
| code.vikunja.io/apiGo | v < 2.3.0, No range specified | 2.3.0 |
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