The Better Search plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.5.2. This makes it possible for unauthenticated attackers to import settings via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-4373
• https://plugins.trac.wordpress.org/changeset/2473344
• https://www.wordfence.com/threat-intel/vulnerabilities/id/cfc6c595-dad2-4abc-8187-ed72355273b8?source=cve
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1