CVE-2026-39666— WordPress Hello Bar Popup Builder plugin <= 1.5.1 - Cross Site Scripting (XSS) vulnerability
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I. Basic Information for CVE-2026-39666
Vulnerability Information
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Vulnerability Title
WordPress Hello Bar Popup Builder plugin <= 1.5.1 - Cross Site Scripting (XSS) vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in telepathy Hello Bar Popup Builder hellobar allows DOM-Based XSS.This issue affects Hello Bar Popup Builder: from n/a through <= 1.5.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
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 Hello Bar Popup Builder 安全漏洞
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 Hello Bar Popup Builder 1.5.1及之前版本存在安全漏洞，该漏洞源于输入中和不当，可能导致DOM型跨站脚本攻击。
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 |
|---|---|---|---|---|
| telepathy | Hello Bar Popup Builder | 0 ~ 1.5.1 | - |
II. Public POCs for CVE-2026-39666
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-79
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V. Comments for CVE-2026-39666
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