Update the WordPress OptinMonster plugin to the latest available version (at least 2.6.5).
Chloe Chamberland (WordFence) discovered and reported this Multiple Vulnerabilities vulnerability in WordPress OptinMonster Plugin. Multiple vulnerabilities were found. Due to the large number of vulnerabilities, this has been grouped in this category. This vulnerability has been fixed in version 2.6.5.
Subscriber+ Arbitrary Post Content Disclosure vulnerability
Reflected CrossSite Scripting (XSS) vulnerability
Execution of Arbitrary Shortcodes
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