CVE-2023-4386
Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via queries
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | wpdevteam |
| Product | essential blocks pro |
| Published | Oct 20, 2023 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
wpdevteam / Essential Blocks Pro
0 ≤ 1.1.0
wpdevteam / Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns
0 ≤ 4.2.0
References
Credits
Marco Wotschka