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_posts 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
Scores
CVSS v3
8.1
EPSS
0.0077
EPSS Percentile
50.7%
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 (3)
wpdeveloper/essential_blocks
< 4.2.0
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