This article is a part of our Vulnerability Database (back to index)
Cross-site Scripting occurrences in Easy Digital Downloads
The Easy Digital Downloads WordPress plugin before 2.11.6 does not sanitise and escape the Downloadable File Name in the Logs, which could allow high privilege users to perform Cross-Site Scripting attacks when the unfiltered_html capability is disallowed (2022-04-18, CVE-2022-0706)
The Easy Digital Downloads WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the $start_date and $end_date parameters found in the ~/includes/admin/payments/class-payments-table.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.11.2. (2021-10-21, CVE-2021-39354)
The easy-digital-downloads plugin before 2.9.16 for WordPress has XSS related to IP address logging. (2019-08-16, CVE-2019-15116)
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>