CVE-2026-18406
Received Received - Intake

Stored XSS in SureForms WordPress Plugin via Text Field

Publication date: 2026-09-05

Last updated on: 2026-09-05

Assigner: Wordfence

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-05
Last Modified
2026-09-05
Generated
2026-09-05
AI Q&A
2026-09-05
EPSS Evaluated
N/A
NVD
CVE-2026-18406
EUVD
EUVD-2026-71884

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpforms sureforms to 2.12.2 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the SureForms WordPress plugin. It allows unauthenticated attackers to inject malicious scripts into web pages by exploiting insufficient input sanitization and output escaping in text fields. The payload is entity-encoded, making it harder to detect.

Detection Guidance

This vulnerability involves Stored Cross-Site Scripting in the SureForms WordPress plugin. To detect it, inspect WordPress sites using the SureForms plugin versions up to 2.12.2 for malicious scripts in text fields. Check plugin files for unsanitized input handling and review database entries for injected payloads.

Impact Analysis

Unauthenticated attackers could inject scripts that execute when users visit affected pages. This could lead to theft of cookies, session tokens, or other sensitive data, defacement of websites, or redirection to malicious sites. Users with admin access could further compromise the site.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Organizations may face fines or penalties for failing to protect user data adequately.

Mitigation Strategies

Immediately update the SureForms plugin to the latest version beyond 2.12.2. If an update is unavailable, consider disabling or removing the plugin until a patch is released. Scan your WordPress site for signs of exploitation and remove any malicious scripts or payloads found.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-18406. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart