CVE-2026-100507 is an unauthenticated cross-site scripting (XSS) vulnerability classified under CWE-79 affecting If-So Dynamic Content Personalization versions up to 1.10.1. The flaw arises from improper neutralization of input during web page generation, enabling attackers to inject malicious scripts that execute in the context of the victim's browser. 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 changed.

Successful exploitation of this vulnerability can allow an attacker to execute arbitrary scripts in the context of the affected web application without authentication. This can lead to partial compromise of confidentiality, integrity, and availability of the affected system or user data. The vulnerability is rated high severity with a CVSS score of 7.1.

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