External risk intelligence

Unauthenticated SQL Injection in Realtyna Organic IDX Plugin

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-45439

An unauthenticated SQL injection vulnerability exists in the Realtyna Organic IDX plugin, allowing an attacker to inject malicious SQL commands. This could lead to unauthorized access to sensitive data or service disruption. Confirming its presence and reachability within our environment is crucial to assess potential

4Halo Surface Signal

SQL Injection

External exposure likelihood

Halo Surface Signal score for CVE-2026-45439

This vulnerability affects a WordPress plugin designed for real estate listings, which are inherently public-facing web components. Plugins of this nature are commonly deployed on internet-accessible websites to display property data to the public, making the vulnerable input surface reachable from the internet by design.

PCI scan relevance

PCI Relevance for CVE-2026-45439

Yes

CVE-2026-45439 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

SQL injection vulnerabilities in the Realtyna Organic IDX plugin can lead to automatic PCI scan failures. Remediation is required before attestation.

Scan-prioritization guidance only—not a PCI DSS certification or ASV attestation.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Horizon Alert

Summary of the vulnerability and why it matters

A critical security issue has been identified in a popular real estate listing plugin used on WordPress websites. This vulnerability, specifically an unauthenticated SQL injection, could potentially expose sensitive data if exploited. The primary concern is to confirm if this plugin is in use within our environment and assess the potential exposure.

  • Unauthenticated access to sensitive data is possible.
  • Confirms plugin usage and assesses potential exposure.
  • Verify usage; assess exposure to sensitive data.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker can exploit this vulnerability by sending specially crafted requests to a website using the Realtyna Organic IDX plugin. This could allow them to inject malicious SQL commands, potentially leading to unauthorized access to sensitive data or disruption of services.

  • No authentication required to access.
  • Triggered by specially crafted SQL injection requests.
  • Risk of unauthorized data access or service disruption.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to inject malicious SQL code into the Realtyna Organic IDX plugin. This could potentially lead to unauthorized access to or manipulation of the underlying database when the plugin is supported by the advisory.

  • Database information could be exposed.
  • SQL injection could occur via unauthenticated network requests.
  • Unauthorized data access or modification.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This SQL injection vulnerability in the Realtyna Organic IDX plugin likely impacts website owners and their associated platform or infrastructure teams. The initial step is to confirm the plugin's presence on any internet-facing websites, assess its reachability and business criticality, and identify the accountable owner. Subsequently, a risk-based remediation plan should be developed.

  • Website owners and platform teams own the issue.
  • Verify plugin presence and internet exposure.
  • Plan remediation based on risk assessment.

Frequently asked questions

What is the Realtyna Organic IDX plugin?

It is a WordPress plugin used by real estate professionals to display property listings and search functionality directly on their websites. By integrating multiple listing service data, it enables visitors to browse real estate inventory, making it a functional component for managing and presenting housing data to the public.

What does SQL injection mean for CVE-2026-45439?

This vulnerability is classified as CWE-89, meaning the software fails to properly sanitize user-supplied data before including it in a database query. Because of this, an attacker can input malicious SQL commands that the plugin executes unintentionally, potentially granting them unauthorized access to the underlying database information.

How is this vulnerability triggered?

An attacker triggers this flaw by sending specially crafted network requests to the website without needing any login credentials. It is important to note that standard, legitimate interactions by typical website visitors—such as browsing properties or filtering searches through the plugin's intended interface—do not trigger this SQL injection.

Is my website at risk for CVE-2026-45439?

According to Halo Surface Signal, this vulnerability is highly relevant because the Realtyna Organic IDX plugin is designed to be public-facing. Websites running this plugin are often accessible from the internet by design to display listings, meaning an attacker can reach the vulnerable component directly from the web without needing internal network access.

What should I do if I use this plugin?

First, confirm if your website is running the Realtyna Organic IDX plugin in versions 5.1.0 or older. Once identified, evaluate the plugin's accessibility to the public and its importance to your operations. Use this assessment to prioritize your response, focusing on confirming its presence and working with your platform team to establish a path toward updates or risk mitigation.

References

Sources and related resources

Primary sources: NVD, CVE.org.

NVDPublished