Sophos Web Protection Appliance end-user-/errdoc.php 'msg' Parameter XSS

This script is Copyright (C) 2013-2016 Tenable Network Security, Inc.

Synopsis :

The remote host is running a web application that is affected by a
cross-site scripting vulnerability.

Description :

The Sophos Web Protection application running on the remote host is
affected by a cross-site scripting (XSS) vulnerability in the
/end-user-/errdoc.php script due to improper sanitization of
user-supplied input passed to the 'msg' parameter. An unauthenticated,
remote attacker can exploit this, via a specially crafted request, to
execute arbitrary script code in a user's browser session.

Note that the application is reportedly affected by additional
vulnerabilities; however, this plugin has not tested for them.

See also :

Solution :

Upgrade to Sophos Web Protection Appliance version or later.

Risk factor :

Medium / CVSS Base Score : 4.3
CVSS Temporal Score : 3.6
Public Exploit Available : true

Family: CGI abuses : XSS

Nessus Plugin ID: 66024 ()

Bugtraq ID: 58834

CVE ID: CVE-2013-2643

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