CVE-2026-87067: CWE-94 Improper Control of Generation of Code ('Code Injection') in Forminator Forms
The Forminator Forms WordPress plugin before 1.57.2.1 does not restrict which classes may be instantiated when it deserialises a value taken from an XML-RPC request, allowing users who hold its forms-management permission to write a file of their choosing and execute arbitrary code. That permission belongs to an administrator by default, and to any role the site has granted it through the Forminator Forms WordPress plugin before 1.57.2.1's own settings, so the issue is reachable well below administrator on sites that use that feature.
AI Analysis
Technical Summary
CVE-2026-87067 is a code injection vulnerability (CWE-94) in the Forminator Forms WordPress plugin before version 1.57.2.1. The vulnerability arises because the plugin does not restrict class instantiation during deserialization of XML-RPC request data. Users with the forms-management permission can exploit this to write arbitrary files and execute arbitrary code. By default, this permission is assigned to administrators but can be granted to other roles, making the vulnerability reachable by less privileged users if configured accordingly.
Potential Impact
Successful exploitation allows an attacker with forms-management permission to write files of their choosing and execute arbitrary code on the WordPress site. This can lead to full site compromise depending on the privileges of the affected user role. The vulnerability affects sites using the plugin versions from 1.57.0.7 up to but excluding 1.57.2.1.
Mitigation Recommendations
Upgrade the Forminator Forms plugin to version 1.57.2.1 or later, where this vulnerability is fixed. Until then, restrict the forms-management permission to trusted users only. No other mitigations are specified. Patch status is confirmed by the version range indicating the fixed version is 1.57.2.1.
CVE-2026-87067: CWE-94 Improper Control of Generation of Code ('Code Injection') in Forminator Forms
Description
The Forminator Forms WordPress plugin before 1.57.2.1 does not restrict which classes may be instantiated when it deserialises a value taken from an XML-RPC request, allowing users who hold its forms-management permission to write a file of their choosing and execute arbitrary code. That permission belongs to an administrator by default, and to any role the site has granted it through the Forminator Forms WordPress plugin before 1.57.2.1's own settings, so the issue is reachable well below administrator on sites that use that feature.
CVSS v3.1
Score 8.5high
Affected software
Forminator Forms
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87067 is a code injection vulnerability (CWE-94) in the Forminator Forms WordPress plugin before version 1.57.2.1. The vulnerability arises because the plugin does not restrict class instantiation during deserialization of XML-RPC request data. Users with the forms-management permission can exploit this to write arbitrary files and execute arbitrary code. By default, this permission is assigned to administrators but can be granted to other roles, making the vulnerability reachable by less privileged users if configured accordingly.
Potential Impact
Successful exploitation allows an attacker with forms-management permission to write files of their choosing and execute arbitrary code on the WordPress site. This can lead to full site compromise depending on the privileges of the affected user role. The vulnerability affects sites using the plugin versions from 1.57.0.7 up to but excluding 1.57.2.1.
Mitigation Recommendations
Upgrade the Forminator Forms plugin to version 1.57.2.1 or later, where this vulnerability is fixed. Until then, restrict the forms-management permission to trusted users only. No other mitigations are specified. Patch status is confirmed by the version range indicating the fixed version is 1.57.2.1.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-08T19:01:39.377Z
- State
- PUBLISHED
Threat ID: 6aaf7de955bf5e2cf5adcf9e
Added to database: 09/20/2026, 06:32:09 UTC
Last enriched: 09/20/2026, 06:47:11 UTC
Last updated: 09/20/2026, 22:12:34 UTC
Views: 11
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