Description

WordPress Plugin Essential Blocks-Page Builder Gutenberg Blocks, Patterns & Templates is prone to multiple vulnerabilities that lets remote attackers inject and execute arbitrary code because the application fails to sanitize user-supplied input before being passed to the unserialize() PHP function. Attackers can possibly exploit these issues to execute arbitrary PHP code within the context of the affected webserver process. WordPress Plugin Essential Blocks-Page Builder Gutenberg Blocks, Patterns & Templates version 4.2.0 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 4.2.1 or latest

References

https://www.wordfence.com/blog/2023/09/two-php-object-injection-vulnerabilities-fixed-in-essential-blocks/

https://www.wordfence.com/threat-intel/vulnerabilities/detail/essential-blocks-420-unauthenticated-php-object-injection-via-queries

https://www.wordfence.com/threat-intel/vulnerabilities/detail/essential-blocks-420-unauthenticated-php-object-injection-via-products

https://plugins.svn.wordpress.org/essential-blocks/trunk/readme.txt

Related Vulnerabilities

MyBB Improper Access Control Vulnerability (CVE-2016-9412)

ownCloud Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2017-9338)

PHP Other Vulnerability (CVE-2004-1065)

Joomla! Core Security Bypass (1.7.0 - 3.9.22)

WordPress Plugin Contact Bank-Contact Form Builder for WordPress Cross-Site Scripting (2.0.225)

Severity

High

Classification

CVE-2023-4386 CVE-2023-4402 CWE-915 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Tags

Missing Update