A vulnerability has been reported in the Lazyest Backup plugin for WordPress, which can be exploited by malicious people to conduct cross-site scripting attacks.
Input passed to the "xml_or_all" parameter is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The vulnerability is reported in versions prior to 0.2.2.