Vulnerability · Published Dec 6, 2022 · Assigned by Zyxel
CVE-2022-40603
Medium 4.7
In plain English
A medium-severity cross-site scripting in ATP series firmware from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | ZyWALL/USG series firmware | 4.30 through 4.72 |
| Zyxel | VPN series firmware | 4.30 through 5.31 |
| Zyxel | USG FLEX series firmware | 4.50 through 5.31 |
| Zyxel | ATP series firmware | 4.32 through 5.31 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N