Plone is a free and open source content management system built on top of the Zope application server. Plone can be used for any kind of website, including blogs, internet sites, webshops and internal websites.
Plone fails to properly sanitize user-supplied input passed to cmd parameter in p_/webdav/xmltools/minidom/xml/sax/saxutils/os/popen2. This can be exploited to execute arbitrary shell commands.
Upgrade to Plone 2.12.20 or 2.13.10 or apply patch Products.Zope_Hotfix_CVE_2011_3587.
This exploit has been tested against Plone 4.1 on Fedora 13 Linux and Plone 4.0.9 on Ubuntu 10.04 LTS.
Mac OS X