Unauthenticated Cross Site Scripting (XSS) in Realtyna Organic IDX plugin <= 5.4.1 versions. (CVE-2026-78261)

The Realtyna Organic IDX plugin versions <= 5.4.1 contain an unauthenticated Cross Site Scripting (XSS) vulnerability (CWE-79). This flaw allows attackers to inject malicious scripts into the plugin without requiring authentication, which can lead to partial compromise of confidentiality, integrity, and availability of the affected system. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to information disclosure, manipulation of data, or disruption of service. The impact is rated as high due to the unauthenticated nature and the scope change in the vulnerability.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider applying any recommended temporary mitigations from the vendor or restricting access to vulnerable plugin features where possible.