Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - RefreshSpecial Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - RefreshSpecial 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.