CVE-2021-1271

Medium

Description

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.

SeverityMedium
CVSS4.8
Exploit probability—
ProductCisco Web Security Virtual Appliance
PublishedJan 20, 2021
First seenJan 20, 2021

How to fix

Update
  • cisco web_security_virtual_appliance12.5.1 or later

Affected products

ProductAffected versionsFixed in
cisco web_security_virtual_appliancev < 12.5.112.5.1

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