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CVE-2026-2506— EM Cost Calculator <= 2.3.1 - Unauthenticated Stored Cross-Site Scripting via 'customer_name'

CVSS 6.1 · Medium EPSS 0.13% · P31
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I. Basic Information for CVE-2026-2506

Vulnerability Information
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Vulnerability Title
EM Cost Calculator <= 2.3.1 - Unauthenticated Stored Cross-Site Scripting via 'customer_name'
Source: NVD (National Vulnerability Database)
Vulnerability Description
The EM Cost Calculator plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.3.1. This is due to the plugin storing attacker-controlled 'customer_name' data and rendering it in the admin customer list without output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the EMCC Customers page.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 EM Cost Calculator 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 EM Cost Calculator 2.3.1及之前版本存在跨站脚本漏洞，该漏洞源于插件存储攻击者控制的customer_name数据并在管理员客户列表中渲染时未进行输出转义，可能导致未经验证的攻击者进行存储型跨站
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

VendorProductAffected VersionsCPESubscribe
motahar1EM Cost Calculator * ~ 2.3.1 -

II. Public POCs for CVE-2026-2506

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III. Intelligence Information for CVE-2026-2506

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IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2026-2506

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