High severity7.2NVD Advisory· Published Sep 5, 2026· Updated Sep 8, 2026
CVE-2026-18406
CVE-2026-18406
Description
The SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Text Field Entity-Encoded Payload in all versions up to, and including, 2.12.2 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
9- plugins.trac.wordpress.org/browser/sureforms/tags/2.12.2/assets/build/entries.jsnvd
- plugins.trac.wordpress.org/browser/sureforms/tags/2.12.2/inc/form-submit.phpnvd
- plugins.trac.wordpress.org/browser/sureforms/tags/2.12.2/inc/form-submit.phpnvd
- plugins.trac.wordpress.org/browser/sureforms/tags/2.12.2/inc/form-submit.phpnvd
- plugins.trac.wordpress.org/browser/sureforms/tags/2.12.2/inc/helper.phpnvd
- plugins.trac.wordpress.org/changeset/3635980/sureforms/trunk/inc/form-submit.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/8583c1f2-0820-492c-9fa1-d96e0ce2ddf2nvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (August 31, 2026 to September 6, 2026)Wordfence Blog · Sep 10, 2026