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Fortinet FortiOS 5.0.5 contains a reflected cross-site scripting (XSS) vulnerability

Vulnerability Note VU#728638

Original Release Date: 2014-02-03 | Last Revised: 2014-02-04


Fortinet FortiOS 5.0.5, and possibly earlier versions, contains a cross-site scripting vulnerability. (CWE-79)


CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Fortinet FortiOS 5.0.5, and possibly earlier versions, contains a cross-site scripting vulnerability. The "mkey" parameter in the "/firewall/schedule/recurrdlg" page is vulnerable to a reflected cross-site scripting attack.


A remote unauthenticated attacker may be able to execute arbitrary script in the context of the end-user's browser session.


Apply an Update

The vendor has released FortiOS 5.0.6 to address this vulnerability. If you are unable to upgrade, please consider the following workaround.

Restrict access

As a general good security practice, only allow connections from trusted hosts and networks. Note that restricting access does not prevent XSS or CSRF attacks since the attack comes as an HTTP request from a legitimate user's host. Restricting access would prevent an attacker from accessing the FortiOS interface using stolen credentials from a blocked network location.

Vendor Information

Affected   Unknown   Unaffected

Fortinet, Inc.

Notified:  November 20, 2013 Updated:  February 03, 2014



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

CVSS Metrics

Group Score Vector
Base 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N
Temporal 3.3 E:U/RL:ND/RC:UC
Environmental 3.3 CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND



Thanks to William Costa for reporting this vulnerability.

This document was written by Jared Allar.

Other Information

CVE IDs: CVE-2013-7182
Date Public: 2014-02-03
Date First Published: 2014-02-03
Date Last Updated: 2014-02-04 13:02 UTC
Document Revision: 15

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