nigh7f411 has reported some vulnerabilities in ModernBill, which can be exploited by malicious people to conduct cross-site scripting attacks and compromise a vulnerable system.

1) Input passed to the "DIR" parameter in include/scripts/export_batch.inc.php, include/scripts/run_auto_suspend.cron.php, include/scripts/send_email_cache.php, include/misc/mod_2checkout/2checkout_return.inc.php, and include/html/nettools.popup.php is not properly verified before being used. This can be exploited to include arbitrary files from local or remote resources.

2) Input passed to the "new_language" parameter in index.php 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 vulnerabilities are reported in versions 4.4.x. Other versions may also be affected.

Solution
Update to version 4.4.2, which fixes the vulnerabilities in #1. Edit the source code to ensure that input is properly sanitised
Further details available in Customer Area

Provided and/or discovered by
nigh7f411

Changelog
Further details available in Customer Area

Original Advisory
http://milw0rm.com/exploits/6916

Deep Links
Links available in Customer Area