Is CVE-2023-28667 actively exploited?

No active exploitation of CVE-2023-28667 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-28667 be exploited remotely?

Yes. CVE-2023-28667 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-28667?

CVE-2023-28667 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-28667

CWE-502Published: March 22, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The Lead Generated WordPress Plugin, version <= 1.23, was affected by an unauthenticated insecure deserialization issue. The tve_labels parameter of the tve_api_form_submit action is passed to the PHP unserialize() function without being sanitized or verified, and as a result could lead to PHP object injection, which when combined with certain class implementations / gadget chains could be leveraged to perform a variety of malicious actions granted a POP chain is also present.

NVD Source

Risk Analysis

The Lead Generated WordPress plugin is vulnerable to unauthenticated insecure deserialization. Attackers can inject malicious objects, which may lead to remote code execution or other malicious actions if a suitable gadget chain is present.

There is no known public exploit for this vulnerability, and it is not in the CISA KEV catalog.

Recommended Action

Users should update the Lead Generated plugin to the latest version or remove the plugin if it is not required.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-28667 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.