Stored XSS Vulnerability in Cisco AsyncOS for Cisco Web Security Appliance (WSA) Web Management Interface

Stored XSS Vulnerability in Cisco AsyncOS for Cisco Web Security Appliance (WSA) Web Management Interface

CVE-2021-1271 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected device. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in an affected interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface.

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