CVE-2023-27990

State: Published
Severity: 4.8 Medium
Published: Apr 24, 2023
Updated: Aug 2, 2024
Reserved: Mar 9, 2023

Description

The cross-site scripting (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.

Scores

CVSS	Score	Vector	Source
3.1	4.8 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N	Zyxel

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
ATP series firmwareZyxel	4.32 through 5.35Affected
USG FLEX series firmwareZyxel	4.50 through 5.35Affected
USG FLEX 50(W) firmwareZyxel	4.16 through 5.35Affected
USG20(W)-VPN firmwareZyxel	4.16 through 5.35Affected
VPN series firmwareZyxel	4.30 through 5.35Affected

References

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

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