CVE-2023-4402

HIGH

Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via get_products Function

Title source: llm

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_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.

References (2)

Core 2

Core References

Exploit

https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/1ede7a25-9bb2-408e-b7fb-e5bd4f594351?source=cve

Scores

CVSS v3 8.1

EPSS 0.0134

EPSS Percentile 67.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-502

Status published

Products (4)

wpdeveloper/essential_blocks < 4.2.1

wpdeveloper/essential_blocks_pro < 1.1.1

wpdevteam/Essential Blocks Pro < 1.1.0

wpdevteam/Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns < 4.2.0

Published Oct 20, 2023

Tracked Since Feb 18, 2026