CVE-2022-40603 - CVE House
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Status published Medium CVE-2022-40603

A cross-site scripting (XSS) vulnerability in the CGI program of...

Vulnerability Description

A cross-site scripting (XSS) vulnerability in the CGI program of Zyxel ZyWALL/USG series firmware versions 4.30 through 4.72, VPN series firmware versions 4.30 through 5.31, USG FLEX series firmware versions 4.50 through 5.31, and ATP series firmware versions 4.32 through 5.31, which could allow an attacker to trick a user into visiting a crafted URL with the XSS payload. Then, the attacker could gain access to some browser-based information if the malicious script is executed on the victim’s browser.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

ZyWALL/USG series firmware, VPN series firmware, USG FLEX series firmware, ATP series firmware
Vulnerable Versions:
4.30 through 4.72, 4.30 through 5.31, 4.50 through 5.31, 4.32 through 5.31

Timeline

Official Publish: December 6th, 2022
Last Modified: April 23rd, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Weaknesses (CWE)