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CVE-2025-0193: Stored Cross-site Scripting (XSS) Vulnerability in the MGate 5121/5122/5123 Series

Published: January 15, 2025

This Alert Is From MOXA

As Industrial IoT (IIoT) adoption continues to proliferate, cybersecurity has become one of the top priorities. The Moxa Product Security Incident Response Team (PSIRT) takes a proactive approach to protect products from cybersecurity vulnerabilities. Moxa PSIRT investigates all reports of vulnerabilities that could potentially affect Moxa products. Moxa created a vulnerability management policy to provide guidance and information to our customers in the event of a reported vulnerability. The management policy ensures that Moxa’s customers have steady, unambiguous resources to help them understand how Moxa resolves or mitigates reported vulnerabilities. For any queries, please email [email protected].

A stored Cross-site Scripting (XSS) vulnerability exists in the MGate 5121/5122/5123 Series firmware version v1.0 because of insufficient sanitization and encoding of user input in the "Login Message" functionality. An authenticated attacker with administrative access can exploit this vulnerability to inject malicious scripts that are continuously stored on the device. These scripts are executed when other users access the login page, potentially resulting in unauthorized actions or other impacts, depending on the user's privileges. 

The Identified Vulnerability Type and Potential Impact 

Item Vulnerability Type Impact
1

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CVE-2025-0193) 

 Exploitation of this vulnerability may result in unauthorized actions or other impacts, depending on the user's privileges. 

Vulnerability Scoring Details 

ID
CVSS
Vector 
 Severity

Unauthenticated

Remote Exploit
CVE-2025-0193 

CVSS 4.0: 5.2
AV:N/AC:H/AT:N/PR:H/UI:P/
VC:N/VI:N/VA:N/SC:H/SI:H/SA:H 
 Medium No

 

This alert has come from: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-247733-cve-2025-0193-stored-cross-site-scripting-(xss)-vulnerability-in-the-mgate-5121-5122-5123-series