Mailman -- cross-site scripting in web interface

Secunia reports:

Two vulnerabilities have been reported in Mailman, which can be exploited by malicious users to conduct script insertion attacks.

Certain input passed via the list descriptions is not properly sanitised before being displayed to the user. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious data is being viewed.

Successful exploitation requires "list owner" permissions.

[source]