CVE-2023-4386 Information

Description

The Essential Blocks plugin for WordPress is vulnerable to PHP Object Injection in versions up to and including 4.2.0 via deserialization of untrusted input in the get_posts function. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system it could allow the attacker to delete arbitrary files retrieve sensitive data or execute code.

Reference

https://www.wordfence.com/threat-intel/vulnerabilities/id/af468f83-d6ad-474c-bf7f-c4eeb6df1b54?source=cve https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/PostBlock.php?rev=2950425#L30