Vulnerability identifier: #VU75459
Vulnerability risk: Low
CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
ATP series
Hardware solutions /
Routers for home users
USG FLEX series
Client/Desktop applications /
Antivirus software/Personal firewalls
VPN series
Client/Desktop applications /
Antivirus software/Personal firewalls
USG FLEX 50W
Hardware solutions /
Firmware
USG20W-VPN
Hardware solutions /
Firmware
Vendor: ZyXEL Communications Corp.
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Mitigation
Install update from vendor's website.
Vulnerable software versions
ATP series: 4.32 - 5.35
USG FLEX series: 4.50 - 5.35
USG FLEX 50W: 4.16 - 5.35
USG20W-VPN: 4.16 - 5.35
VPN series: 4.30 - 5.35
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.