Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-55300— Komari Allows Cross-site WebSocket Hijacking

Quick assessment

Affected
komari-monitor komari
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

AI Predicted 9.1 Difficulty: Easy EPSS 0.55% · P44
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-55300

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Komari Allows Cross-site WebSocket Hijacking
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
komari-monitor komari < 1.0.4-fix1 -

II. Public POCs for CVE-2025-55300

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-55300

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-55300 (1)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2025-55300

No comments yet

Leave a comment