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I. Basic Information for CVE-2025-55300
Vulnerability Information

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Vulnerability Title
Komari Allows Cross-site WebSocket Hijacking
Source: NVD (National Vulnerability Database)
Vulnerability Description
Komari is a lightweight, self-hosted server monitoring tool designed to provide a simple and efficient solution for monitoring server performance. Prior to 1.0.4-fix1, WebSocket upgrader has disabled origin checking, enabling Cross-Site WebSocket Hijacking (CSWSH) attacks against authenticated users. Any third party website can send requests to the terminal websocket endpoint with browser's cookies, resulting in remote code execution. This vulnerability is fixed in 1.0.4-fix1.
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
Komari 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Komari是Komari Moniter开源的一个简单的服务器监控工具。 Komari 1.0.4-fix1之前版本存在跨站脚本漏洞,该漏洞源于WebSocket升级器禁用来源检查,可能导致跨站WebSocket劫持和远程代码执行。
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
komari-monitorkomari < 1.0.4-fix1 -
II. Public POCs for CVE-2025-55300
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III. Intelligence Information for CVE-2025-55300
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