CVSS 3.1 Score 8.1 of 10 (high)


Published Oct 20, 2023
Updated: Nov 7, 2023
CWE ID 502


CVE-2023-4386 is a vulnerability affecting the Essential Blocks plugin for WordPress, specifically in versions up to and including 4.2.0. The vulnerability allows for PHP Object Injection through the deserialization of untrusted input in the get_posts function. This could enable unauthenticated attackers to inject a PHP Object. While no Proof-of-Concept (POP) chain is present in the vulnerable plugin, if there is a POP chain via an additional plugin or theme installed on the target system, it could lead to file deletion, retrieval of sensitive data, or code execution. The vulnerability has a risk score of 25 and has been rated as HIGH severity by NVD (National Vulnerability Database).

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