This article is a part of our Vulnerability Database (back to index)
Cross-site Scripting occurrences in Certificate System
A vulnerability was found in all pki-core 10.x.x version, where the Token Processing Service (TPS) did not properly sanitize several parameters stored for the tokens, possibly resulting in a Stored Cross Site Scripting (XSS) vulnerability. An attacker able to modify the parameters of any token could use this flaw to trick an authenticated user into executing arbitrary JavaScript code. (2020-03-31, CVE-2019-10180)
A flaw was found in the all pki-core 10.x.x versions, where Token Processing Service (TPS) where it did not properly sanitize Profile IDs, enabling a Stored Cross-Site Scripting (XSS) vulnerability when the profile ID is printed. An attacker with sufficient permissions could trick an authenticated victim into executing a specially crafted Javascript code. (2020-03-20, CVE-2020-1696)
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>