The 2TypoFR WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the text function found in the ~/vendor/Org_Heigl/Hyphenator/index.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.11.
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34657
https://plugins.trac.wordpress.org/browser/typofr/trunk/vendor/Org_Heigl/Hyphenator/index.php#L82