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I. Basic Information for CVE-2026-27639
Vulnerability Information

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Vulnerability Title
Mercator vulnerable to stored XSS via unescaped Blade directives in display templates
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mercator is an open source web application designed to enable mapping of information systems. A stored Cross-Site Scripting (XSS) vulnerability exists in Mercator prior to version 2026.02.22 due to the use of unescaped Blade directives (`{!! !!}`) in display templates. An authenticated user with the User role can inject arbitrary JavaScript payloads into fields such as "contact point" when creating or editing entities. The payload is then executed in the browser of any user who views the affected page, including administrators. Version 2026.02.22 fixes the vulnerability.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
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
Mercator 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mercator是Didier Barzin个人开发者的一个生态系统可视化软件。 Mercator 2026.02.22之前版本存在跨站脚本漏洞,该漏洞源于显示模板中使用了未转义的Blade指令,可能导致存储型跨站脚本攻击。
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
VendorProductAffected VersionsCPESubscribe
dbarzinmercator < 2026.02.22 -
II. Public POCs for CVE-2026-27639
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III. Intelligence Information for CVE-2026-27639
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IV. Related Vulnerabilities
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