Stored Cross-Site Scripting (XSS) vulnerability in Alexander Ustimenko's Psychological tests & quizzes plugin <= 0.21.19 on WordPress possible for users with contributor or higher role via &wpt_test_page_submit_button_caption parameter.CreditsVulnerability discovered by Ex.Mi (Patchstack)Referenceshttps://wordpress.org/plugins/wp-testing/https://patchstack.com/database/vulnerability/wp-testing/wordpress-psychological-tests-quizzes-plugin-0-21-19-authenticated-stored-cross-site-scripting-xss-vulnerability-1