CVE-2023-35139

State: Published
Severity: 5.2 Medium
Published: Nov 28, 2023
Updated: Aug 2, 2024
Reserved: Jun 14, 2023

Description

A cross-site scripting (XSS) vulnerability in the CGI program of the Zyxel ATP series firmware versions 5.10 through 5.37, USG FLEX series firmware versions 5.00 through 5.37, USG FLEX 50(W) series firmware versions 5.10 through 5.37, USG20(W)-VPN series firmware versions 5.10 through 5.37, and VPN series firmware versions 5.00 through 5.37, could allow an unauthenticated LAN-based attacker to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed to steal cookies when the user visits the specific CGI used for dumping ZTP logs.

Scores

CVSS	Score	Vector	Source
3.1	5.2 Medium	CVSS:3.1/AV:A/AC:L/PR:N/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	versions 5.10 through 5.37Affected
USG FLEX series firmwareZyxel	versions 5.00 through 5.37Affected
USG FLEX 50(W) series firmwareZyxel	versions 5.10 through 5.37Affected
USG20(W)-VPN series firmwareZyxel	versions 5.10 through 5.37Affected
VPN series firmwareZyxel	versions 5.00 through 5.37Affected

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-apsvendor-advisory

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