High severity7.2NVD Advisory· Published May 3, 2026· Updated May 5, 2026

CVE-2026-5063

Description

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.

Affected products

WordPress/Nex Forms Express Wp Form Builderinferred
Range: <=9.1.11
Package: https://wordpress.org/plugins/nex-forms-express-wp-form-builder

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

plugins.trac.wordpress.org/changeset/3513524/nex-forms-express-wp-form-buildernvd
www.wordfence.com/threat-intel/vulnerabilities/id/9bac82ee-55bf-4381-b441-115a675e4834nvd

News mentions

Wordfence Intelligence Weekly WordPress Vulnerability Report (April 27, 2026 to May 3, 2026)
Wordfence Blog · May 7, 2026

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