This article is a part of our Vulnerability Database (back to index)
Cross-site Scripting occurrences in Deskpro
Deskpro cloud and on-premise Deskpro 2021.1.6 and fixed in Deskpro 2021.1.7 contains a cross-site scripting (XSS) vulnerability in the download file feature on a manager profile due to lack of input validation. (2021-09-08, CVE-2021-36695)
Deskpro cloud and on-premise Deskpro 2021.1.6 and fixed in Deskpro 2021.1.7 contains a cross-site scripting (XSS) vulnerability in social media links on a user profile due to lack of input validation. (2021-09-07, CVE-2021-36696)
Deskpro Cloud Platform and on-premise 2020.2.3.48207 from 2020-07-30 contains a cross-site scripting (XSS) vulnerability that can lead to an account takeover via custom email templates. (2021-05-12, CVE-2020-28722)
Why Cross-site Scripting can be dangerous
Cross site scripting is an attack where a web page executes code that is injected by an adversary. It usually appears, when users input is presented. This attack can be used to impersonate a user, take over control of the session, or even steal API keys.
The attack can be executed e.g. when you application injects the request parameter directly into the HTML code of the page returned to the user:
https://server.com/confirmation?message=Transaction+Complete
what results in:
<span>Confirmation: Transaction Complete</span>
In that case the message can be modified to become a valid Javascript code, e.g.:
https://server.com/confirmation?message=<script>dangerous javascript code here</script>
and it will be executed locally by the user's browser with full access to the user's personal application/browser data:
<span>Confirmation: <script>dangerous javascript code here</script></span>