CVE-2026-25133— October CMS has Stored XSS via SVG Filter Bypass

October CMS has Stored XSS via SVG Filter Bypass

October is a Content Management System (CMS) and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting (XSS) vulnerability in the SVG sanitization logic. The regex pattern used to strip event handler attributes (such as onclick or onload) could be bypassed using a crafted payload that exploits how the pattern matches attribute boundaries, allowing malicious SVG files to be uploaded through the Media Manager with embedded JavaScript. Exploitation could lead to privilege escalation if a superuser views or embeds the malicious SVG, and requires authenticated backend access with media upload permissions. The SVG must be viewed or embedded in a page for the payload to trigger. This issue has been fixed in versions 3.7.14 and 4.1.10.

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在Web页面生成时对输入的转义处理不恰当(跨站脚本)

October 跨站脚本漏洞

October是October开源的一个内容管理系统 (CMS) 和网络平台。 October 3.7.14之前版本和4.1.10之前版本存在跨站脚本漏洞，该漏洞源于SVG清理逻辑中的正则表达式模式可被绕过，可能导致存储型跨站脚本攻击。

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