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.
References
| Link | Resource |
|---|---|
| https://github.com/go-vikunja/vikunja/commit/0f3730d045f20e261e3cdfc6d93c325653395b64 | Patch |
| https://github.com/go-vikunja/vikunja/pull/2580 | Issue Tracking |
| https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 | Release Notes |
| https://github.com/go-vikunja/vikunja/security/advisories/GHSA-45q4-x4r9-8fqj | Exploit Vendor Advisory |
Configurations
History
17 Apr 2026, 21:56
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/go-vikunja/vikunja/commit/0f3730d045f20e261e3cdfc6d93c325653395b64 - Patch | |
| References | () https://github.com/go-vikunja/vikunja/pull/2580 - Issue Tracking | |
| References | () https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 - Release Notes | |
| References | () https://github.com/go-vikunja/vikunja/security/advisories/GHSA-45q4-x4r9-8fqj - Exploit, Vendor Advisory | |
| First Time |
Vikunja
Vikunja vikunja |
|
| CPE | cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:* |
10 Apr 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-10 17:17
Updated : 2026-04-17 21:56
NVD link : CVE-2026-35600
Mitre link : CVE-2026-35600
CVE.ORG link : CVE-2026-35600
JSON object : View
Products Affected
vikunja
- vikunja
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')