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

Deserialization of Untrusted Data

CVE

CVE-2023-4402

CVSS

8.1 (High)

Publicly Published

September 13, 2023

Last Updated

October 20, 2023

Researcher

Marco Wotschka

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

• plugins.trac.wordpress.org

Share

2 affected software packages

Software Type

Plugin

Software Slug

essential-blocks (view on wordpress.org)

Patched?

Yes

Remediation

Update to version 4.2.1, or a newer patched version

Affected Version

• <= 4.2.0

Patched Version

• 4.2.1

Software Type

Plugin

Software Slug

essential-blocks-pro (view on wordpress.org)

Patched?

Yes

Remediation

Update to version 1.1.1, or a newer patched version

Affected Version

• <= 1.1.0

Patched Version

• 1.1.1

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