Vulnerability CVE-2024-4288
Published: 2024-05-16

Description:
The Appointment Booking Calendar ?? Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ??link?? parameter in versions up to, and including, 1.6.7.14 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

 References:
https://www.wordfence.com/threat-intel/vulnerabilities/id/84262b4a-a662-4aaf-9eae-f5cca8f6cd06?source=cve
https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/trunk/includes/class-shortcodes.php#L677
https://plugins.trac.wordpress.org/changeset/3087297/
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