CVE-2026-66604: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Paolo GeoDirectory

CVE-2026-66604 is an unauthenticated Cross-Site Scripting (CWE-79) vulnerability in Paolo's GeoDirectory product affecting versions up to 2.8.173. The vulnerability arises from improper neutralization of input during web page generation, allowing attackers to inject malicious scripts that execute in the context of users' browsers. The CVSS 3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability with scope change.

Successful exploitation of this vulnerability can allow an attacker to execute arbitrary scripts in the context of the victim's browser, potentially leading to theft of sensitive information, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability.

No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider applying input validation and output encoding workarounds if feasible.