SonicWall GMS 9.5.x XSS Enables Remote JS Execution
CVE-2026-66146 Published on August 11, 2026

Multiple Cross-Site Scripting (XSS) vulnerabilities were identified in GMS 9.5.1 (Build 9510.1044) and earlier versions that allow a remote attacker to execute javascript script in a user's browser.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-66146 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
LOW
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2026-66146 has been classified to as a XSS vulnerability or weakness.


Affected Versions

SonicWall GMS Version 9.5.1 and earlier versions is affected by CVE-2026-66146