i18n XSS vulnerability in HTMLMultiSelectField when sections are used
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/fields/HTMLMultiSelectField.Php.

This issue affects MediaWiki: before 1.39.12, 1.42.6, 1.43.1.