WordPress before 5.2.3 has an issue with URL sanitization in wp_kses_bad_protocol_once in wp-includes/kses.php that can lead to cross-site scripting (XSS) attacks.
In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.
Cross-site scripting (XSS) vulnerability in platinum_seo_pack.php in the Platinum SEO plugin before 1.3.8 for WordPress allows remote attackers to inject arbitrary web script or HTML via the s parameter.