CVE-2023-4402 HIGH

CVE-2023-4402: Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via products

Vendor Wpdevteam
Product Essential Blocks Pro
Weakness CWE-502 · Unsafe deserialization
Published October 20, 2023
Last update April 8, 2026

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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_products 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.

Key dates

02Disclosure timeline

October 20, 2023 CVE published
April 8, 2026 Record updated

Related vulnerabilities

04Related CVE