Description
WordPress is prone to a prototype pollution vulnerability. Exploiting this issue could allow an attacker to inject key/value �properties� into JavaScript objects, potentially allowing for execution of arbitrary JavaScript in a user�s session if they can trick that user into clicking a link. WordPress versions 3.9.x ranging from 3.9 and up to (and including) 3.9.35 are vulnerable.
Remediation
Update to WordPress version 3.9.36 or latest
References
https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-query-object.md
https://wordpress.org/support/wordpress-version/version-3-9-36/
Related Vulnerabilities
Oracle JRE CVE-2013-2431 Vulnerability (CVE-2013-2431)
Joomla Generation of Error Message Containing Sensitive Information Vulnerability (CVE-2022-23794)
IBM RTC Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2018-1734)
WordPress Plugin Maintenance Mode Unspecified Vulnerability (1.3.3)