Description
WordPress is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress versions 6.3.x ranging from 6.3 and up to (and including) 6.3.3 are vulnerable.
Remediation
Update to WordPress version 6.3.4 or latest
References
https://sploitus.com/exploit?id=WPEX-ID:1A5C5DF1-57EE-4190-A336-B0266962078F
https://wordpress.org/documentation/wordpress-version/version-6-3-4/
Related Vulnerabilities
Oracle JRE CVE-2014-0457 Vulnerability (CVE-2014-0457)
WordPress Plugin WooCommerce Product Vendors Cross-Site Scripting (2.0.35)
WordPress Plugin Pressbooks Cross-Site Scripting (2.4.2)
MySQL CVE-2015-0409 Vulnerability (CVE-2015-0409)
WordPress Plugin WordPress Backup and Migrate-Backup Guard Cross-Site Request Forgery (1.1.90)