CVE-2026-13040

HIGH 7.2

NEX-Forms <= 9.2.2 - Unauthenticated Stored Cross-Site Scripting via 'real_val__' Parameter

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'real_val__' parameter in all versions up to, and including, 9.2.2 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. The submission endpoint is registered via wp_ajax_nopriv_submit_nex_form with no nonce verification, making it fully accessible to unauthenticated attackers without any CSRF token.

CWE	CWE-79
Vendor	webaways
Product	nex-forms – ultimate forms plugin for wordpress
Published	Jul 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

webaways / NEX-Forms – Ultimate Forms Plugin for WordPress

0 ≤ 9.2.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/49dc267a-48cf-487f-bedc-fd892666e9a0?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L467 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L4896 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L4870 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L5323 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/includes/classes/class.functions.php#L2461 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L2660 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.11/main.php#L467 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.11/main.php#L4896 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.11/main.php#L4870 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.11/main.php#L5323 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.11/includes/classes/class.functions.php#L2461 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.11/main.php#L2660 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3584399%40nex-forms-express-wp-form-builder&new=3584399%40nex-forms-express-wp-form-builder&sfp_email=&sfph_mail=

Credits

Taichi Kashimura