Printeron Cross-site Scripting

PrinterOn Enterprise 4.1.4 suffers from multiple authenticated stored XSS vulnerabilities via the (1) "Machine Host Name" or "Server Serial Number" field in the clustering configuration, (2) "name" field in the Edit Group configuration, (3) "Rule Name" field in the Access Control configuration, (4) "Service Name" in the Service Configuration, or (5) First Name or Last Name field in the Edit Account configuration. (2019-03-21, CVE-2018-17167)

PrinterOn Enterprise 4.1.3 suffers from multiple authenticated stored XSS vulnerabilities via the (1) department field in the printer configuration, (2) description field in the print server configuration, and (3) username field for authentication to print as guest. (2018-05-17, CVE-2018-10326)

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>