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CVE-2025-41768— Beckhoff: XSS Vulnerability in TwinCAT 3 HMI Server

Quick assessment

Affected
Beckhoff Automation TwinCAT.HMI.Server
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.

Beckhoff Automation TwinCAT 3 HMI Server是美国Beckhoff Automation公司的一个数据传输和权限管理组件。 Beckhoff Automation TwinCAT 3 HMI Server存在跨站脚本漏洞，该漏洞源于经过身份验证的管理员可在自定义CSS字段中注入任意内容，可能导致恶意代码在登录页面和错误页面上执行。

CVSS 5.5 · Medium EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-41768

Vulnerability Information
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Vulnerability Title
Beckhoff: XSS Vulnerability in TwinCAT 3 HMI Server
Source: CVE Program / CVE List V5
Vulnerability Description
An high privileged remote attacker can inject arbitrary content into the custom CSS field on the affected devices due to improper neutralization of input during web page generation ('Cross-site Scripting').
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A: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
Beckhoff Automation TwinCAT 3 HMI Server 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Beckhoff Automation TwinCAT 3 HMI Server是美国Beckhoff Automation公司的一个数据传输和权限管理组件。 Beckhoff Automation TwinCAT 3 HMI Server存在跨站脚本漏洞，该漏洞源于经过身份验证的管理员可在自定义CSS字段中注入任意内容，可能导致恶意代码在登录页面和错误页面上执行。
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
Beckhoff Automation TwinCAT.HMI.Server 0.0.0 ~ 14.4.267 -
Beckhoff Automation TF2000-HMI-Server 0.0.0 ~ 14.4.267 -
Beckhoff Automation tf2000-hmi-server 0.0.0 ~ 14.4.267 -

II. Public POCs for CVE-2025-41768

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III. Intelligence Information for CVE-2025-41768

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IV. Related Vulnerabilities

Same vendor: Beckhoff Automation
Same weakness: CWE-79

V. Comments for CVE-2025-41768

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