Description
WordPress Plugin Spam protection, AntiSpam, FireWall by CleanTalk 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 Spam protection, AntiSpam, FireWall by CleanTalk version 5.136.3 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 5.137 or latest
References
Related Vulnerabilities
WordPress Plugin WP Frontend Profile Security Bypass (1.2.1)
Plone CMS Improper Restriction of XML External Entity Reference Vulnerability (CVE-2020-28736)
WordPress Plugin Blogroll Fun-Show Last Post and Last Update Time Cross-Site Scripting (0.8.4)
Drupal Incorrect Authorization Vulnerability (CVE-2017-6377)
Joomla Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2020-15700)