CVE-2026-91014 in Organic IDX Plugin
Summary
by MITRE • 09/17/2026
The Realtyna Organic IDX plugin + WPL Real Estate WordPress plugin before 5.4.2 does not sanitise and escape some of its parameters before reflecting them back in the page, allowing unauthenticated attackers to run arbitrary web scripts in a visitor's browser if they can trick the visitor into following a crafted link (reflected XSS).
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Analysis
by VulDB Data Team • 09/17/2026
The vulnerability identified involves a reflected cross-site scripting flaw within the Realtyna Organic IDX plugin and WPL Real Estate WordPress plugin for versions prior to 5.4.2. This security issue stems from an insufficient sanitization and escaping of user-supplied input parameters before they are dynamically included in HTTP responses sent back to clients. When these unsanitized values are reflected directly into web pages without proper validation, the application fails to distinguish between legitimate data and malicious script content, creating a vector for code injection attacks.
From a technical perspective, this flaw is classified under CWE-79, which describes Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The specific mechanism here relies on reflected input where the server echoes back user-controlled data without applying necessary encoding or filtering functions such as htmlspecialchars in PHP environments. An attacker can exploit this by constructing a malicious URL containing embedded JavaScript payloads within query parameters that correspond to vulnerable endpoints exposed by these plugins.
The operational impact of this vulnerability allows unauthenticated attackers to execute arbitrary web scripts in the context of a victim's browser session. Since no authentication is required, any internet user with knowledge of the target site can attempt exploitation. By tricking a legitimate visitor into clicking a crafted link, the attacker triggers the execution of malicious code within the victim's environment. This can lead to severe consequences including session hijacking through cookie theft, credential harvesting via fake login forms injected into the page, defacement of the website content visible to users, or redirection to phishing sites designed to steal sensitive information.
This attack vector aligns with MITRE ATT&CK technique T1059 which covers Command and Scripting Interpreter execution within web browsers. The lack of output encoding means that scripts can interact with the Document Object Model to manipulate page behavior stealthily from the user's perspective. Because the vulnerability exists in widely used real estate plugins, it poses a significant risk to property listing websites where high traffic volumes increase the likelihood of successful exploitation through social engineering tactics like phishing emails or malicious advertisements.
To mitigate this vulnerability, administrators must upgrade both the Realtyna Organic IDX plugin and WPL Real Estate WordPress plugin to version 5.4.2 or later where these input handling issues have been addressed. Implementing a Web Application Firewall can provide an additional layer of defense by filtering out requests containing known XSS payloads before they reach the application logic. Furthermore, developers should enforce strict output encoding practices ensuring that all dynamic content rendered in HTML contexts is properly escaped using context-aware methods to prevent script execution regardless of input validation outcomes.