Description
WordPress Plugin Advanced Search 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 Advanced Search version 1.1.2 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.1.3 or latest
References
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38348
https://plugins.svn.wordpress.org/advance-search/trunk/readme.txt
Related Vulnerabilities
Joomla Incorrect Authorization Vulnerability (CVE-2010-1435)
Joomla Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2015-8563)
WordPress Plugin Invoicing with InvoiceXpress for WooCommerce-Free Cross-Site Scripting (3.0.2)
WordPress Plugin Tutor LMS-eLearning and online course solution Cross-Site Scripting (1.9.11)