Ziost CMS
Ziost CMS is content management system developed with PHP/MySQL. It targeted to small to medium websites, and is free to use. Ziost CMS version 5 has these features:
- unlimited pages with unlimited level hierarchy;
- WYSIWYG editor for pages;
- multilanguage content support;
- attachments and comments for pages;
- integrated image gallery;
- role-based extensible security model;
- RSS feeds
You may download stable version 5.0.1 and use in your project for free.
Project page for those who want more information: http://cms.ziostlabs.com