External risk intelligence

Realtyna Organic IDX Plugin Code Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2026-57811

The vulnerability affects a WordPress plugin designed for real estate listings. Such plugins are commonly deployed on public-facing web servers to display content to internet users, making the application's attack surface reachable via the internet in typical deployments.

Code Injection

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

A critical vulnerability has been identified in the Realtyna Organic IDX plugin, a component used for real estate listings. This issue allows for remote code inclusion, meaning unauthorized individuals could potentially insert and execute malicious code within the affected system. The primary concern is to determine if this plugin is in use and, if so, to assess the potential exposure.

Code can be inserted remotely.
It affects public-facing real estate sites.
Confirm usage and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending a specially crafted request to a WordPress site running the Realtyna Organic IDX plugin. If the plugin is exposed to the internet, the attacker could achieve remote code inclusion, potentially leading to the execution of arbitrary code on the server.

Requires public plugin exposure.
Triggered by crafted requests.
Allows remote code execution.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in the Realtyna Organic IDX plugin could allow a remote attacker to include and execute arbitrary code on the affected server. This could occur when the plugin is accessible via the network and certain conditions are met, potentially impacting the server's integrity and the confidentiality of its data.

Server code execution.
Remote code inclusion via network.
Compromise of server integrity.

Operational Fix

Recommended remediation, mitigation, and detection steps

Application owners and infrastructure teams are likely responsible for addressing this critical code injection vulnerability within the Realtyna Organic IDX plugin. The first practical step is to identify all instances of the affected plugin, confirm their exposure and business criticality, and then determine the accountable owner to plan a risk-based remediation strategy.

Plugin owners should manage this issue.
Verify public exposure and business impact.
Plan remediation with vendor coordination.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is the Realtyna Organic IDX plugin?

It is a specialized WordPress plugin designed for real estate professionals. It allows agents and brokers to integrate comprehensive property listing search features, map views, and real estate data directly into their WordPress-powered websites to help potential buyers find properties.

What does CWE-94 mean for CVE-2026-57811?

CWE-94 refers to 'Improper Control of Generation of Code,' commonly known as code injection. In the context of CVE-2026-57811, it means the plugin fails to properly sanitize input, allowing an unauthorized person to inject their own commands. This grants the attacker the ability to make the server execute unintended, malicious instructions.

How is this vulnerability triggered?

An attacker triggers this by sending a specially crafted request to the web server hosting the plugin. It is not triggered by standard site navigation or routine user interactions; rather, it requires an intentionally malicious input designed to force the application to include and run unauthorized code.

Why should I care about this vulnerability?

Because this plugin is intended for public-facing real estate sites, Halo Surface Signal notes it is likely accessible via the internet. If your site uses this plugin, it is reachable by anyone online, meaning the risk is not limited to internal users but extends to any remote attacker who identifies your site.

What are the first steps to address this?

Begin by auditing your WordPress site environment to confirm if the Realtyna Organic IDX plugin is installed and active. Once identified, document which business services depend on it, confirm the current version, and coordinate with your technical team to prioritize removing the vulnerable component or applying the vendor's required updates.

References

patchstack.com/database/Wordpress/Plugin/real-estate-listing-realtyn…

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.