6.1

CVE-2023-35139

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.

Data is provided by the National Vulnerability Database (NVD)
ZyxelZld Version >= 5.10 <= 5.37
   ZyxelAtp100 Version-
   ZyxelAtp100w Version-
   ZyxelAtp200 Version-
   ZyxelAtp500 Version-
   ZyxelAtp700 Version-
   ZyxelAtp800 Version-
ZyxelZld Version >= 5.00 <= 5.37
   ZyxelUsg Flex 100 Version-
   ZyxelUsg Flex 100w Version-
   ZyxelUsg Flex 200 Version-
   ZyxelUsg Flex 50 Version-
   ZyxelUsg Flex 500 Version-
   ZyxelUsg Flex 50w Version-
   ZyxelUsg Flex 700 Version-
ZyxelZld Version >= 5.10 <= 5.37
   ZyxelUsg 20w-vpn Version-
   ZyxelVpn50w Version-
ZyxelZld Version >= 5.00 <= 5.37
   ZyxelVpn100 Version-
   ZyxelVpn1000 Version-
   ZyxelVpn300 Version-
   ZyxelVpn50 Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.12% 0.32
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 6.1 2.8 2.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
security@zyxel.com.tw 5.2 2.1 2.7
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.