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.
Problem types
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Product status
References
github.com/...ikunja/security/advisories/GHSA-45q4-x4r9-8fqj
github.com/go-vikunja/vikunja/pull/2580
github.com/...ommit/0f3730d045f20e261e3cdfc6d93c325653395b64
github.com/go-vikunja/vikunja/releases/tag/v2.3.0