Cross-site scripting in SonicWall GMS - CVE-2026-66146
Published: August 11, 2026
Vulnerability identifier: #VU141446
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-66146
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute javascript in a user's browser.
The vulnerability exists due to cross-site scripting in the GMS web interface when rendering web content. A remote user can inject a crafted script to execute javascript in a user's browser.
User interaction is required.
Affected software
SonicWall GMS
How to mitigate CVE-2026-66146
Install security update from vendor's website.
SonicWall GMS - update to 9.5.2