Description
WordPress Plugin On Page SEO + Social Live Chat (Formerly OPS) 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 On Page SEO + Social Live Chat (Formerly OPS) version 1.0.1 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.0.2 or latest
References
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38332
https://plugins.svn.wordpress.org/ops-robots-txt/trunk/readme.txt
Related Vulnerabilities
phpMyAdmin Permissions, Privileges, and Access Controls Vulnerability (CVE-2013-4729)
WordPress Plugin Wordfence Security-Firewall & Malware Scan Cross-Site Scripting (5.1.2)
Drupal Permissions, Privileges, and Access Controls Vulnerability (CVE-2014-5020)
WordPress Plugin Age Verification 'redirect_to' Parameter URI Redirection (0.4)