Severity by source
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
VMware NSX contains a stored Cross-Site Scripting (XSS) vulnerability in the gateway firewall due to improper input validation.
Analysis
VMware NSX contains a stored Cross-Site Scripting (XSS) vulnerability in the gateway firewall due to improper input validation.
Technical ContextAI
Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.
RemediationAI
Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-16909