External risk intelligence

GDPR Framework by Data443 Unauthenticated PHP Object Injection

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-39797

The vulnerability affects a WordPress plugin, which functions as a web application component. WordPress plugins are commonly deployed in public-facing web environments, making the attack surface frequently reachable from the internet.

Deserialization

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory concerns a critical vulnerability identified in a GDPR compliance plugin for websites. The flaw could allow an unauthenticated attacker to inject malicious code, potentially leading to unauthorized access and manipulation of sensitive data on affected systems. The primary concern is to confirm if this specific plugin is in use and to assess any potential exposure.

Flaw allows unauthenticated code injection.
It's a widely used plugin, raising concern.
Confirm usage and assess potential impact.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by sending specially crafted requests to a vulnerable system. Because no authentication is required, an attacker can trigger this flaw over the network. Successful exploitation could allow an attacker to inject malicious code, leading to a complete compromise of the affected system.

No authentication needed.
Triggered via network requests.
Remote code execution risk.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could impact systems using the GDPR Framework by Data443 plugin, potentially allowing unauthenticated attackers to inject and execute arbitrary PHP code. This could affect the integrity and availability of the affected website or application when supported by the advisory.

Plugin code execution and data compromise.
Exploited via network requests.
Website integrity and availability risks.

Operational Fix

Recommended remediation, mitigation, and detection steps

The GDPR Framework by Data443 plugin, if deployed and exposed externally, would likely fall under the responsibility of application owners or the platform team managing the WordPress instances. The first step is to identify all instances of this plugin, confirm their reachability and criticality, and then assign ownership for remediation planning.

Application or platform teams should own resolution.
Verify plugin presence and external exposure.
Plan remediation based on identified risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is the GDPR Framework by Data443 plugin?

This software is a WordPress plugin designed to help website administrators manage privacy compliance requirements, such as handling user data requests or displaying consent notices. It functions as an extension to the WordPress platform, integrating directly into the web application to automate data privacy workflows for site visitors.

What does PHP Object Injection mean in CVE-2026-39797?

This vulnerability is a form of 'Insecure Deserialization,' categorized as CWE-502. It occurs when the plugin improperly processes untrusted data. By sending a specially crafted input, an attacker can trick the application into creating unintended objects in memory, which may allow them to execute unauthorized code or manipulate the application's logic.

How is the CVE-2026-39797 vulnerability triggered?

An attacker triggers this flaw by sending a malicious request over the network to the affected WordPress site. Because the plugin does not require the attacker to be logged in or have any administrative permissions, it can be triggered by anyone with network access. Standard, legitimate interactions with the site that do not involve submitting these specific, crafted requests will not trigger this issue.

Is my system at risk if it uses this plugin?

According to Halo Surface Signal, this vulnerability is classified as likely to be reachable from the internet because it affects a WordPress plugin, which is typically deployed in public-facing web environments. If your instance is accessible to the public, it faces a higher level of risk than one restricted to an internal-only network.

What steps should I take if I am running this plugin?

Begin by auditing your environment to confirm if you have the GDPR Framework by Data443 plugin installed and active. Once identified, evaluate the plugin's accessibility to ensure it is not unnecessarily exposed to the internet. Coordinate with your application or platform management team to verify the installation and plan for necessary updates or removal to mitigate the risk of code execution.

References

patchstack.com/database/wordpress/plugin/gdpr-framework/vulnerabilit…

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.