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 user rights.
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-36867
268 hits since 2022-04-27
PHP Vulns Source Ratio: 15% (8976 total, 674 propagated, 4488 filtered)