Description
WordPress Plugin Share Buttons by AddThis 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 Share Buttons by AddThis version 5.0.12 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 5.0.13 or latest
References
Related Vulnerabilities
WordPress 3.9.x PHP Object Injection (3.9 - 3.9.33)
MediaWiki Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2021-46148)
PHP Deserialization of Untrusted Data Vulnerability (CVE-2017-11143)
MediaWiki Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2012-5394)
WordPress Plugin Smash Balloon Social Post Feed Cross-Site Scripting (4.1)