Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - OpenBadges Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - OpenBadges Extension: from 1.39.X before 1.39.11, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.
The CentralAuth extension for MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote attackers to obtain usernames via vectors related to writing the names to the DOM of a page.