CVE-2023-27990 Information

Description

The XSS vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35 USG FLEX series firmware versions 4.50 through 5.35 USG FLEX 50(W) firmware versions 4.16 through 5.35 USG20(W)-VPN firmware versions 4.16 through 5.35 and VPN series firmware versions 4.30 through 5.35 which could allow an authenticated attacker with administrator privileges to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed when the user visits the Logs page of the GUI on the device.

Reference

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-xss-vulnerability-and-post-authentication-command-injection-vulnerability-in-firewalls