CVE-2026-18406
CVE-2026-18406
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.
Vulnerability class: XSS (Cross-Site Scripting)
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-18406?
- CVE-2026-18406 is a high-severity vulnerability, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-05.
- How severe is CVE-2026-18406?
- High severity. CVSS v3 base score is 7.2 out of 10.