CVE-2026-57668 describes a Stored Cross-site Scripting (XSS) vulnerability in Basix NEX-Forms (nex-forms-express-wp-form-builder) affecting versions up to and including 9.2.2. The issue is due to improper neutralization of input during web page generation, which can allow an attacker to inject and store malicious scripts that execute in the context of users viewing the affected pages. The vulnerability has a CVSS 3.1 base score of 7.1, reflecting a high-severity flaw exploitable remotely without privileges but requiring user interaction. No vendor advisory or patch information is currently available, and no known exploits in the wild have been reported.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of users visiting the affected web pages, potentially leading to theft of sensitive information, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability of the affected system or user data.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider applying temporary mitigations such as input validation and output encoding on affected inputs if possible. Monitor vendor channels for updates and apply patches promptly once available.