MediaWiki
MediaWiki is a free software wiki package written in PHP originally for use on Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis. MediaWiki is designed to be run on a large server farm for a website that gets millions of hits per day.
Official Site:
https://www.mediawiki.org/wiki/MediaWikiSeverity Summary:
Reference
Title
Severity
MediaWiki Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability
MediaWiki Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability