CVE-2026-3395— MaxSite CMS MarkItUp Preview AJAX Endpoint preview-ajax.php eval code injection
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I. Basic Information for CVE-2026-3395
Vulnerability Information
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Vulnerability Title
MaxSite CMS MarkItUp Preview AJAX Endpoint preview-ajax.php eval code injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in MaxSite CMS up to 109.1. This impacts the function eval of the file application/maxsite/admin/plugins/editor_markitup/preview-ajax.php of the component MarkItUp Preview AJAX Endpoint. Executing a manipulation can lead to code injection. It is possible to launch the attack remotely. The exploit has been published and may be used. Upgrading to version 109.2 will fix this issue. This patch is called 08937a3c5d672a242d68f53e9fccf8a748820ef3. You should upgrade the affected component. The code maintainer was informed beforehand about the issues. He reacted very fast and highly professional.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
MaxSite CMS 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MaxSite CMS是俄国MaxSite CMS开源的一款网站内容管理系统。 MaxSite CMS 109.1及之前版本存在代码注入漏洞，该漏洞源于组件MarkItUp Preview AJAX Endpoint中文件application/maxsite/admin/plugins/editor_markitup/preview-ajax.php的函数存在代码注入。
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
II. Public POCs for CVE-2026-3395
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- Submit #762169: maxsite CMS CMS 109.1 Code Injectionthird-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-3395
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V. Comments for CVE-2026-3395
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