The vulnerability CVE-2025-31011 affects ReichertBrothers SimplyRETS Real Estate IDX (up to version 3.2.2) and is classified as a reflected cross-site scripting (XSS) issue. It occurs due to improper neutralization of input during web page generation, enabling attackers to inject malicious scripts that execute in the victim's browser when they interact with crafted links or inputs. The CVSS 3.1 base score is 7.1, indicating a high severity with network attack vector, low attack complexity, no privileges required, user interaction needed, and impacts on confidentiality, integrity, and availability. No known exploits in the wild have been reported, and no patch or vendor advisory is currently provided.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to disclosure of sensitive information, modification of data, or disruption of service. The reflected XSS requires user interaction to trigger and affects confidentiality, integrity, and availability to a limited extent as indicated by the CVSS vector.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution when interacting with untrusted inputs or links related to SimplyRETS Real Estate IDX. Implementing web application firewall (WAF) rules to detect and block reflected XSS payloads may provide temporary mitigation.