CVE-2025-20180

A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager and Secure Email Gateway could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Operator. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

CVE-2025-20180 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

CVE-2025-20180 affects products from cisco, specifically: asyncos, secure_email_and_web_manager_m170, secure_email_and_web_manager_m190, secure_email_and_web_manager_m195, secure_email_and_web_manager_m380, secure_email_and_web_manager_m390, secure_email_and_web_manager_m390x, secure_email_and_web_manager_m395, secure_email_and_web_manager_m680, secure_email_and_web_manager_m690, secure_email_and_web_manager_m690x, secure_email_and_web_manager_m695, secure_email_and_web_manager_virtual_appliance_m100v, secure_email_and_web_manager_virtual_appliance_m300v, secure_email_and_web_manager_virtual_appliance_m600v, secure_email_gateway_c195, secure_email_gateway_c395, secure_email_gateway_c695, secure_email_gateway_virtual_appliance_c100v, secure_email_gateway_virtual_appliance_c300v, secure_email_gateway_virtual_appliance_c600v. Check the affected products table above for specific version ranges.

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.