Description
WordPress Plugin Search Exclude is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions and subsequently modify plugin settings. WordPress Plugin Search Exclude version 1.2.2 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.2.5 or latest
References
https://www.pluginvulnerabilities.com/2019/09/03/settings-change-vulnerability-in-search-exclude/
https://blog.nintechnet.com/settings-change-vulnerability-in-wordpress-search-exclude-plugin/
https://plugins.svn.wordpress.org/search-exclude/trunk/readme.txt