Description
WordPress Plugin ReDi Restaurant Reservation 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 Plugin ReDi Restaurant Reservation version 21.0307 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 21.0426 or latest
References
https://bastijnouwendijk.com/cve-2021-24299/
https://www.exploit-db.com/exploits/49903
https://plugins.svn.wordpress.org/redi-restaurant-reservation/trunk/readme.txt