Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms <= 1.26.13 - Unauthenticated PHP Object Injection
| CVE | CVE-2026-49768 |
|---|---|
| CVSS | 8.1 (High) |
| Publicly Published | June 4, 2026 |
| Last Updated | June 8, 2026 |
| Researcher |
longnv719
|
Description
The Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.26.13 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
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Vulnerability Details for Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms
| Software Type | Plugin |
|---|---|
| Software Slug | happyforms (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.26.14, or a newer patched version |
| Affected Version |
|
| Patched Version |
|
Recent vulnerabilities in Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | HappyForms <= 1.26.12 - Authenticated (Admin+) Local File Inclusion | CVE-2025-11977 | Rahul Sreenivasan (Tr0j4n) | July 9, 2026 | |
| 2 | Happyforms <= 1.26.2 - Authenticated (Admin+) Stored Cross-Site Scripting | CVE-2024-10054 | Bob Matyas | November 20, 2024 | |
| 3 | Happyforms <= 1.26.0 - Authenticated (Author+) Stored Cross-Site Scripting | CVE-2024-44063 | Michael | August 29, 2024 | |
| 4 | Happyforms <= 1.25.10 - Missing Authorization | CVE-2024-23521 | Revan Arifio | January 31, 2024 | |
| 5 | Happyforms <= 1.25.9 - Reflected Cross-Site Scripting | CVE-2023-48752 | Le Ngoc Anh | November 27, 2023 | |
| 6 | Happyforms <= 1.21.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Blocks | CVE-2023-0096 | István Márton | January 13, 2023 |
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