PHP Object Injection Vulnerability in Essential Blocks Plugin for WordPress
CVE-2023-4402

9.8CRITICAL

Key Information:

Vendor
Wordpress
Status
Essential Blocks Pro
Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates
Vendor
CVE Published:
20 October 2023

Summary

The Essential Blocks plugin for WordPress is susceptible to PHP Object Injection due to deserialization of untrusted input within the get_products function. This vulnerability affects versions up to and including 4.2.0. Unauthenticated attackers can exploit this flaw to inject PHP objects, leading to potential risks when a dangerous Object-Property (POP) chain is present via other plugins or themes. Such exploitation could permit attackers to delete files, access sensitive information, or execute malicious code.

Affected Version(s)

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates * <= 4.2.0

Essential Blocks Pro * <= 1.1.0

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/essential-bloc...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marco Wotschka
.