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CERT Coordination Center

Open Technology Real Services nested tags cross-site scripting vulnerability

Vulnerability Note VU#511404

Original Release Date: 2012-08-30 | Last Revised: 2012-08-30


Open Technology Real Services (OTRS) is susceptible to a cross-site scripting vulnerability when viewing HTML webpages with nested tags.


Open Technology Real Services (OTRS) contains a cross-site scripting (CWE-79) vulnerability in the email body. An attacker may be able to load arbitrary script in the context of the user's browser when they view a specifically crafted email message containing an invalid HTML structure with nested tags.


<s<script>...</script><script>...<cript type="text/javascript">
document.write("Hello World!");
alert('Mike was here!');;

Additional details may be found in the OTRS advisory.


An attacker may be able to execute arbitrary script in the context of the user's browser.


Apply an Update

The OTRS advisory states: This vulnerability is fixed in OTRS 2.4.14, 3.0.16 and 3.1.10 and it is recommended to upgrade to one of these versions.

Vendor Information


OTRS Affected

Notified:  August 27, 2012 Updated: August 30, 2012



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Vendor References

CVSS Metrics

Group Score Vector
Base 6.1 AV:N/AC:H/Au:N/C:P/I:C/A:N
Temporal 4.8 E:POC/RL:OF/RC:C
Environmental 4.8 CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND



Thanks to Mike Eduard of Znuny GmbH for reporting this vulnerability.

This document was written by Michael Orlando.

Other Information

CVE IDs: CVE-2012-4600
Date Public: 2012-08-30
Date First Published: 2012-08-30
Date Last Updated: 2012-08-30 16:57 UTC
Document Revision: 9

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