CVE-2023-4402
Wpdeveloper Essential Blocks insecure deserialization
- Published20 Oct 2023
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.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
Remediation
References
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2023-4402 being actively exploited?
CVE-2023-4402 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.46%.
How severe is CVE-2023-4402?
CVE-2023-4402 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 1.46% probability of exploitation.
Which products are affected by CVE-2023-4402?
Affected products include Wpdeveloper Essential Blocks Pro, Wpdeveloper Essential Blocks.
How do I fix CVE-2023-4402?
Upgrade affected software to a fixed version, for example Wpdeveloper Essential Blocks Pro 1.1.1, Wpdeveloper Essential Blocks 4.2.1 or later, then confirm no affected versions remain in your inventory.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2023-4402 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.