Stored cross-site scripting in Cisco Systems, Inc products - CVE-2023-20120
Published: June 22, 2023
Vulnerability identifier: #VU77618
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2023-20120
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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 in the web-based management interface. 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.
Affected software
Cisco AsyncOS for Secure Email and Web Manager
Cisco AsyncOS for Secure Email Gateway
Cisco AsyncOS for Secure Web Appliance
Cisco AsyncOS for Secure Email Gateway
Cisco AsyncOS for Secure Web Appliance
How to mitigate CVE-2023-20120
Install updates from vendor's website.
Cisco AsyncOS for Secure Email and Web Manager - update to 15.0.0-317
Cisco AsyncOS for Secure Web Appliance - update to 15.0.0-332
Cisco AsyncOS for Secure Email Gateway - update to 15.0.0-332
Cisco AsyncOS for Secure Web Appliance - update to 15.0.0-332
Cisco AsyncOS for Secure Email Gateway - update to 15.0.0-332