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I. Basic Information for CVE-2026-35600
Vulnerability Information

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Vulnerability Title
Vikunja has HTML Injection via Task Titles in Overdue Email Notifications
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vikunja 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vikunja是Vikunja开源的一个待办事项应用程序。 Vikunja 2.3.0之前版本存在跨站脚本漏洞,该漏洞源于逾期邮件通知中任务标题嵌入Markdown链接语法时未转义特殊字符,可能导致在合法通知邮件中注入钓鱼链接和跟踪像素。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
go-vikunjavikunja < 2.3.0 -
II. Public POCs for CVE-2026-35600
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III. Intelligence Information for CVE-2026-35600
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IV. Related Vulnerabilities
V. Comments for CVE-2026-35600

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