Element Pack Addons for Elementor <= 8.4.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via SVG Image Widget

The Element Pack Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the SVG Image Widget in versions up to and including 8.4.2. This is due to insufficient input sanitization and output escaping on SVG content fetched from remote URLs in the render_svg() function. The function fetches SVG content using wp_safe_remote_get() and then directly echoes it to the page without any sanitization, only applying a preg_replace() to add attributes to the SVG tag which does not remove malicious event handlers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary JavaScript in SVG files that will execute whenever a user accesses a page containing the malicious widget.

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

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

WordPress plugin Element Pack Addons for Elementor 跨站脚本漏洞

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Element Pack Addons for Elementor 8.4.2及之前版本存在跨站脚本漏洞，该漏洞源于对SVG Image Widget中远程获取的SVG内容清理和转义不足，可能导致存储型跨站脚本攻击。

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