CVE-2021-4387

The Opal Estate plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.6.11. This is due to missing or incorrect nonce validation on the opalestate_set_feature_property() and opalestate_remove_feature_property() functions. This makes it possible for unauthenticated attackers to set and remove featured properties via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

• CWE-352

• https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/Exploit, Third Party Advisory
• https://plugins.trac.wordpress.org/browser/opal-estate/trunk/inc/ajax-functions.php#L177Not Applicable
• https://www.wordfence.com/threat-intel/vulnerabilities/id/2645899c-2b6b-48bd-8f33-2a837a951c5e?source=cveThird Party Advisory
• https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/Exploit, Third Party Advisory
• https://plugins.trac.wordpress.org/browser/opal-estate/trunk/inc/ajax-functions.php#L177Not Applicable
• https://www.wordfence.com/threat-intel/vulnerabilities/id/2645899c-2b6b-48bd-8f33-2a837a951c5e?source=cveThird Party Advisory

Published

Jul 1, 2023

Last Modified

Jun 17, 2026

Status

Modified