CVE-2026-27616— Vikunja 跨站脚本漏洞

Vikunja Vulnerable to Stored Cross-Site Scripting (XSS) via Unsanitized SVG Attachment Upload Leading to Token Exposure

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to upload SVG files as task attachments. SVG is an XML-based format that supports JavaScript execution through elements such as <script> tags or event handlers like onload. The application does not sanitize SVG content before storing it. When the uploaded SVG file is accessed via its direct URL, it is rendered inline in the browser under the application's origin. As a result, embedded JavaScript executes in the context of the authenticated user. Because the authentication token is stored in localStorage, it is accessible via JavaScript and can be retrieved by a malicious payload. Version 2.0.0 patches this issue.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Vikunja 跨站脚本漏洞

Vikunja是Vikunja开源的一个待办事项应用程序。 Vikunja 2.0.0之前版本存在跨站脚本漏洞，该漏洞源于未清理SVG内容，可能导致嵌入的JavaScript在已验证用户环境中执行。

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