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OpenAdvisories
High · 7.2 CVE-2026-5063 EUVD-2026-26815GHSA-j9pc-2g9w-gcm3

NEX-Forms <= 9.1.11 - Unauthenticated Stored Cross-Site Scripting via POST Parameter Key Names

Published May 3, 2026 · Updated May 4, 2026 · Assigned by Wordfence

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

VendorProductAffectedFixed
webaways NEX-Forms – Ultimate Forms Plugin for WordPress ≤ 9.1.11 —

References