NetSight
medium4.7

CVE-2022-40603

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…

Impact

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.

Affected products

VendorProductAffected versions
ZyxelAtp800 Firmware
from 4.32 through 5.31
ZyxelAtp700 Firmware
from 4.32 through 5.31
ZyxelAtp500 Firmware
from 4.32 through 5.31
ZyxelAtp200 Firmware
from 4.32 through 5.31
ZyxelAtp100 Firmware
from 4.32 through 5.31
ZyxelAtp100w Firmware
from 4.32 through 5.31
ZyxelUsg Flex 100w Firmware
from 4.50 through 5.31
ZyxelUsg Flex 200 Firmware
from 4.50 through 5.31
ZyxelUsg Flex 500 Firmware
from 4.50 through 5.31
ZyxelUsg Flex 700 Firmware
from 4.50 through 5.31
ZyxelUsg Flex 50w Firmware
from 4.50 through 5.31
ZyxelVpn1000 Firmware
from 4.30 through 5.31

Weakness classification

References