CVE-2024-13784: Contact Form, Survey, Quiz & Popup Form Builder – ARForms <= 1.8.5 - Unauthenticated PHP Object Injection

Published Aug 16, 2026
·
Updated

The Contact Form, Survey, Quiz & Popup Form Builder – ARForms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.8.5 via deserialization of untrusted input from form submissions. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

Affected Software

1 affected component
ARForms ARForms<=1.8.5

Event History

Aug 16, 2026
CVE Published
via MITRE·08:31 AM
Data Sourced
via MITRE·08:31 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:16 AM
DescriptionSeverityWeakness

Frequently Asked Questions

1

What is the severity of CVE-2024-13784?

CVE-2024-13784 has a critical severity score of 9.8.

2

What does CVE-2024-13784 exploit?

CVE-2024-13784 exploits PHP Object Injection through the deserialization of untrusted input from form submissions.

3

How can I fix CVE-2024-13784?

To fix CVE-2024-13784, upgrade the ARForms plugin to version 1.8.6 or later.

4

Who is affected by CVE-2024-13784?

Any user of the ARForms plugin for WordPress versions 1.8.5 and below is at risk from CVE-2024-13784.

5

What are the potential impacts of CVE-2024-13784?

CVE-2024-13784 can allow unauthenticated attackers to execute arbitrary code on the server via PHP Object Injection.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203