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    CVE-2023-4402

    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.

    Published:Oct 20, 2023
    Last Modified:Apr 8, 2026
    EPS:Oct 20, 2023
    EPSS Score:0.02874
    CVSS Score:8.1

    Affected Products

    Vendor
    Wpdeveloper
    Product
    Essential Blocks
    Vendor
    Wpdeveloper
    Product
    Essential Blocks Pro

    Exploits

    https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High