WPForms <= 2.0.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content

4.9
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-15782
CVSS 4.9 (Medium)
Publicly Published July 20, 2026
Last Updated July 21, 2026
Researcher Asaf Mozes

Description

The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content in all versions up to, and including, 2.0.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the OptinMonster plugin to be installed and configured with an active inline campaign that outputs matching #om-{id} markup on the target page, as the WPForms handler only fires when OptinMonster emits its 'om.Campaign.load' event.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More

Software Type Plugin
Software Slug wpforms-lite (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.0.0.2, or a newer patched version
Affected Version
  • <= 2.0.0.1
Patched Version
  • 2.0.0.2

Recent vulnerabilities in WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More

# Title CVE ID CVSS Researchers Date
1 WPForms <= 1.10.2 - Improper Neutralization of CRLF Sequences to Unauthenticated Email Header Injection via Reply-To Display Name CVE-2026-12127 5.3 AlexHenry June 30, 2026
2 WPForms <= 1.10.0.4 - Unauthenticated Insufficient Verification of Data Authenticity via PayPal Commerce Webhook Endpoint CVE-2026-7792 5.3 Valatty June 5, 2026
3 WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More <= 1.10.0.4 - Missing Authorization CVE-2026-48835 5.3 Cyrille COQUARD May 28, 2026
4 Contact Form by WPForms <= 1.10.0.2 - Cross-Site Request Forgery CVE-2026-40764 4.3 vladimir tokarev March 31, 2026
5 WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More <= 1.9.8.7 - Unauthenticated Sensitive Information Exposure CVE-2026-25339 5.3 Sandeep V March 23, 2026
6 Contact Form by WPForms <= 1.9.9.3 - Missing Authorization CVE-2026-32446 4.3 davidfdzmorilla March 7, 2026
7 WPForms Lite <= 1.9.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'start_timestamp' Parameter CVE-2025-3794 5.4 Asaf Mozes May 9, 2025
8 WPForms Lite <= 1.9.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via fieldHTML Parameter CVE-2024-13403 6.4 Asaf Mozes February 3, 2025
9 Contact Form by WPForms <= 1.9.2.2 - Missing Authorization CVE-2024-56276 4.3 Rafie Muhammad January 3, 2025
10 WPForms 1.8.4 - 1.9.2.1 - Missing Authorization to Authenticated (Subscriber+) Payment Refund and Subscription Cancellation CVE-2024-11205 8.5 villu164 December 9, 2024

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