Businessconnect Trading Community Management Cross-site Scripting

The Web Server component of TIBCO Software Inc.'s TIBCO BusinessConnect Trading Community Management contains easily exploitable Reflected Cross Site Scripting (XSS) vulnerabilities that allow an unauthenticated attacker with network access to execute scripts targeting the affected system or the victim's local system. Affected releases are TIBCO Software Inc.'s TIBCO BusinessConnect Trading Community Management: versions 6.1.0 and below. (2022-05-18, CVE-2022-22777)

The Web Server component of TIBCO Software Inc.'s TIBCO BusinessConnect Trading Community Management contains easily exploitable vulnerabilities that allows a low privileged attacker with network access to execute Stored Cross Site Scripting (XSS) on the affected system. A successful attack using these vulnerabilities requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO BusinessConnect Trading Community Management: versions 6.1.0 and below. (2022-05-18, CVE-2022-22776)

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>