HappyForms <= 1.26.12 - Authenticated (Admin+) Local File Inclusion
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-98.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Happyforms | Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms | up to 1.26.12 | — | No fix listed | CNA |
- Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms VendorHappyforms Affected up to 1.26.12 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-11977
- 2026-10-03 Alias added: GHSA-f6q8-jxw9-8mhj
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e31119ab-963d-48a4-9948-0a0dce761918?source=cve
- https://plugins.svn.wordpress.org/happyforms/trunk/core/classes/class-wp-customize-form-manager.php
- https://plugins.svn.wordpress.org/happyforms/trunk/core/helpers/helper-form-templates.php
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3494912%40happyforms&new=3494912%40happyforms
More Happyforms vulnerabilities
- TI-2023-00092 Happyforms < 1.22.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2024-09328 Happyforms < 1.26.3 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2026-36677 WordPress Happyforms plugin <= 1.26.13 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-26582 WordPress Happyforms Plugin <= 1.25.9 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
- TI-2026-63940 WordPress Happyforms plugin <= 1.26.15 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2024-15562 WordPress Happyforms plugin <= 1.25.10 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
Sources
- CVE-2025-11977 · CVE Program
- CVE-2025-11977 · NVD
- FIRST EPSS
- GHSA-f6q8-jxw9-8mhj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences