Happyforms Plugin up to 1.26.12 on WordPress Form Builder happyforms_get_form_partial file inclusion

Summaryinfo

A vulnerability was found in Happyforms Plugin up to 1.26.12. It has been classified as problematic. This affects the function happyforms_get_form_partial of the component Form Builder. Performing a manipulation results in file inclusion. This vulnerability is known as CVE-2025-11977. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Happyforms Plugin up to 1.26.12. This affects the function happyforms_get_form_partial of the component Form Builder. The manipulation with an unknown input leads to a file inclusion vulnerability. CWE is classifying the issue as CWE-73. The product allows user input to control or influence paths or file names that are used in filesystem operations. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 1.26.12 via the happyforms_get_form_partial() function. This makes it possible for authenticated attackers, with Administrator-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included.

The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2025-11977 since 10/20/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/10/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Name

• Happyforms Plugin

Version

• 1.26.0
• 1.26.1
• 1.26.2
• 1.26.3
• 1.26.4
• 1.26.5
• 1.26.6
• 1.26.7
• 1.26.8
• 1.26.9
• 1.26.10
• 1.26.11
• 1.26.12

CPE 2.3info

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• 🔒
• 🔒

CPE 2.2info

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• 🔒
• 🔒

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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