CVE-2026-91014 Overview
CVE-2026-91014 is a reflected Cross-Site Scripting (XSS) vulnerability in the Realtyna Organic IDX plugin + WPL Real Estate WordPress plugin. The plugin fails to sanitize and escape several parameters before reflecting them back in the response page. Unauthenticated attackers can inject arbitrary JavaScript into a visitor's browser session by tricking the target into following a crafted link. The flaw is tracked under [CWE-79] and affects all plugin versions prior to 5.4.2.
Critical Impact
Unauthenticated attackers can execute arbitrary scripts in a visitor's browser, enabling session theft, credential harvesting, and redirection to attacker-controlled infrastructure.
Affected Products
- Realtyna Organic IDX plugin + WPL Real Estate WordPress plugin (versions before 5.4.2)
- WordPress sites running vulnerable versions of the plugin
- Visitors interacting with crafted URLs targeting affected endpoints
Discovery Timeline
- 2026-09-17 - CVE-2026-91014 published to NVD
- 2026-09-17 - Last updated in NVD database
Technical Details for CVE-2026-91014
Vulnerability Analysis
The vulnerability stems from improper handling of user-supplied input within the Realtyna Organic IDX plugin. Specific request parameters are reflected in the rendered HTML response without proper sanitization or output encoding. An attacker crafts a URL that embeds JavaScript payloads inside these vulnerable parameters. When a visitor clicks the link, the plugin returns a page containing the injected script, which then executes in the visitor's browser context under the origin of the WordPress site.
Because the attack requires no authentication and the vulnerable parameters are reflected in the initial page response, exploitation is straightforward once a valid injection point is identified. The impact scope extends beyond the vulnerable component due to the browser executing scripts under the trusted origin.
Root Cause
The plugin does not apply WordPress sanitization functions such as sanitize_text_field() or escape helpers such as esc_html() and esc_attr() to affected parameters. User-controlled query string values flow directly into the HTML response body, allowing attacker-controlled markup and script tags to be interpreted by the browser.
Attack Vector
An attacker constructs a malicious URL pointing to a vulnerable endpoint on a target WordPress site running the plugin. The URL contains an XSS payload in one of the unsanitized parameters. The attacker distributes the link through phishing email, social media, or malicious advertisements. When the victim visits the link, the injected JavaScript runs with access to cookies, localStorage, and the DOM of the affected site. This enables session hijacking, credential theft via injected forms, and further pivoting into administrative sessions if the victim is a logged-in site administrator.
The vulnerability is described in prose only, as no verified public exploit code has been published. See the WPScan Vulnerability Report for advisory details.
Detection Methods for CVE-2026-91014
Indicators of Compromise
- Web server access logs containing suspicious query string parameters with <script>, javascript:, onerror=, or URL-encoded equivalents targeting Realtyna plugin endpoints
- Referrer headers pointing to unfamiliar domains preceding requests to plugin pages
- Unexpected outbound requests from user browsers to attacker-controlled domains following visits to the WordPress site
Detection Strategies
- Deploy Web Application Firewall (WAF) rules that inspect query parameters on WordPress endpoints for reflected XSS payload patterns
- Enable WordPress security plugins that log and alert on requests containing script injection signatures
- Correlate access log entries with browser Content Security Policy (CSP) violation reports to identify active injection attempts
Monitoring Recommendations
- Monitor plugin version inventory across WordPress installations and flag any Realtyna Organic IDX plugin instance below 5.4.2
- Track anomalous spikes in traffic to plugin-specific URLs, especially from external referrers
- Review browser telemetry for unexpected script execution originating from WordPress domains hosting the plugin
How to Mitigate CVE-2026-91014
Immediate Actions Required
- Update the Realtyna Organic IDX plugin + WPL Real Estate to version 5.4.2 or later on all WordPress installations
- Audit WordPress plugin inventories to confirm no unpatched instances remain in production or staging environments
- Review recent web server logs for evidence of exploitation attempts against affected endpoints
Patch Information
The vendor addressed the vulnerability in version 5.4.2 of the Realtyna Organic IDX plugin + WPL Real Estate. Administrators should upgrade through the WordPress plugin dashboard or by replacing the plugin directory with the patched release. See the WPScan Vulnerability Report for advisory metadata.
Workarounds
- Deploy a WAF rule that blocks requests containing script tags or JavaScript event handlers in query parameters targeting plugin endpoints
- Enforce a strict Content Security Policy that disallows inline script execution to reduce impact of reflected XSS
- Temporarily disable the Realtyna plugin until the patched version can be applied if immediate updates are not feasible
# Example CSP header to mitigate reflected XSS impact
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self';"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
