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I. Basic Information for CVE-2026-2736
Vulnerability Information

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Vulnerability Title
Reflected Cross-Site Scripting (XSS) vulnerability in Alkacon's OpenCms
Source: NVD (National Vulnerability Database)
Vulnerability Description
Reflected Cross-site Scripting (XSS) in Alkacon's OpenCms v18.0, which allows an attacker to execute JavaScript code in the victim's browser by sending the victim a malicious URL containing the ‘q’ parameter in ‘/search/index.html’. This vulnerability can be exploited to steal sensitive user information such as session cookies, or to perform actions while impersonating the user.
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
Alkacon OpenCMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Alkacon OpenCMS是Alkacon公司的一个内容管理系统。 Alkacon OpenCMS v18.0版本存在跨站脚本漏洞,该漏洞源于/search/index.html中的q参数未经验证,可能导致反射型跨站脚本攻击。
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
AlkaconOpenCms 18.0 -
II. Public POCs for CVE-2026-2736
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III. Intelligence Information for CVE-2026-2736
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IV. Related Vulnerabilities
V. Comments for CVE-2026-2736

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