A vulnerability was discovered and corrected in webmin:

Cross-site scripting (XSS) vulnerability in Webmin 1.540 and earlier
allows local users to inject arbitrary web script or HTML via a
chfn command that changes the real (aka Full Name) field, related to
useradmin/index.cgi and useradmin/user-lib.pl (CVE-2011-1937).

Packages for 2009.0 are provided as of the Extended Maintenance
Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=490

The updated packages have been upgraded to the 1.550 version which
is not vulnerable to this issue.