CVE Catalog

CVE-2026-5063

High
Published: Translated: NVD NIST

Summary

The NEX-Forms – Ultimate Forms Plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) via POST parameter key names in the submit_nex_form() function in versions up to and including 9.1.11 due to insufficient input sanitization and output escaping.

Risk Assessment

Unauthenticated attackers can inject arbitrary web scripts that will execute whenever a user accesses an injected page, potentially leading to data theft or session hijacking.

Recommendation

It is recommended to update the NEX-Forms plugin to the latest version to mitigate this vulnerability and implement additional security measures such as input filtering and validation.

Related vulnerabilities

Original NVD description (English source)

The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via POST parameter key names in the submit_nex_form() function in versions up to, and including, 9.1.11 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS