CVE-2026-2509— Page Builder: Pagelayer <= 2.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Button Widget Custom Attributes
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I. Basic Information for CVE-2026-2509
Vulnerability Information
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Vulnerability Title
Page Builder: Pagelayer <= 2.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Button Widget Custom Attributes
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Page Builder: Pagelayer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Button widget's Custom Attributes field in all versions up to, and including, 2.0.8. This is due to an incomplete event handler blocklist in the 'pagelayer_xss_content' XSS filtering function, which blocks common, but not all, event handlers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
WordPress plugin Page Builder: Pagelayer 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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 Page Builder: Pagelayer 2.0.8及之前版本存在跨站脚本漏洞，该漏洞源于XSS过滤函数中的事件处理程序阻止列表不完整，可能导致经过身份验证的攻击者通过按钮部件的自定义属性字段注入任意Web脚本
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| softaculous | Page Builder: Pagelayer – Drag and Drop website builder | 0 ~ 2.0.8 | - |
II. Public POCs for CVE-2026-2509
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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Same vendor: softaculous
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Same weakness: CWE-79
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V. Comments for CVE-2026-2509
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