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CVE-2026-5301— Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in coolercontrol-ui

Quick assessment

Affected
CoolerControl coolercontrol-ui
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.

CoolerControl是CoolerControl开源的一个冷却设备控制软件。 CoolerControl 4.0.0之前版本存在跨站脚本漏洞，该漏洞源于日志查看器存在存储型跨站脚本，可能导致未经验证的攻击者通过恶意JavaScript接管服务。

CVSS 7.6 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-5301

Vulnerability Information
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Vulnerability Title
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in coolercontrol-ui
Source: CVE Program / CVE List V5
Vulnerability Description
Stored XSS in log viewer in CoolerControl/coolercontrol-ui <4.0.0 allows unauthenticated attackers to take over the service via malicious JavaScript in poisoned log entries
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
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
CoolerControl 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CoolerControl是CoolerControl开源的一个冷却设备控制软件。 CoolerControl 4.0.0之前版本存在跨站脚本漏洞，该漏洞源于日志查看器存在存储型跨站脚本，可能导致未经验证的攻击者通过恶意JavaScript接管服务。
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
CoolerControl coolercontrol-ui 2.0.0 ~ 4.0.0 -

II. Public POCs for CVE-2026-5301

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-5301

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Same Patch Batch · CoolerControl · 2026-04-08 · 4 CVEs total

CVE-2026-5208 8.2 HIGH Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2026-5302 6.3 MEDIUM Permissive Cross-domain Policy with Untrusted Domains in coolercontrold
CVE-2026-5300 5.9 MEDIUM Missing Authentication for Critical Function in coolercontrold

IV. Related Vulnerabilities

Same vendor: CoolerControl
Same weakness: CWE-79

V. Comments for CVE-2026-5301

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