CVE-2026-87067— Forminator Forms < 1.57.2.1 - Authenticated RCE via XML-RPC PHP Object Injection
Quick assessment
Affected
Unknown Forminator Forms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Forminator Forms WordPress 插件在 1.57.2.1 之前的版本中，在反序列化从 XML-RPC 请求中获取的值时，未限制可实例化的类，这使得持有该插件“表单管理”权限的用户能够写入其选择的目标文件并执行任意代码。该权限默认归属于管理员角色，但也可通过 Forminator Forms WordPress 插件（1.57.2.1 之前版本）的自带设置授予网站上的任意角色，因此在启用了该功能的站点上，该漏洞的影响范围远不止于管理员，更低权限的角色也可能受到影响。
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I. Basic Information for CVE-2026-87067
Vulnerability Information
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Vulnerability Title
Forminator Forms < 1.57.2.1 - Authenticated RCE via XML-RPC PHP Object Injection
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | Forminator Forms | 1.57.0.7 ~ 1.57.2.1 | - |
|
II. Public POCs for CVE-2026-87067
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-87067 (1)
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🔗 Forminator Forms < 1.57.2.1 – Authenticated RCE via XML-RPC PHP Object Injection | CVE 2026-87067 | Plugin Vulnerabilities exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-09-20 · 20 CVEs total
| CVE-2026-85017 | Unlimited Elements For Elementor < 2.0.20 - Subscriber+ PHP Object Injection | |
| CVE-2026-14844 | Master Slider <= 3.11.2 - Contributor+ Stored XSS via ms_slider Shortcode Attributes | |
| CVE-2026-16542 | Import and export users and customers < 2.4.5 - Admin+ SSRF via bp_avatar | |
| CVE-2026-81650 | NextGEN Gallery < 4.5.0 - Authenticated Arbitrary File Upload via ZIP Import | |
| CVE-2026-81652 | NextGEN Gallery < 4.5.0 - Contributor+ Image Metadata Disclosure via IDOR | |
| CVE-2026-81653 | NextGEN Gallery < 4.5.0 - Authenticated Arbitrary Gallery Image Deletion via IDOR | |
| CVE-2026-81654 | NextGEN Gallery < 4.5.0 - Authenticated Plugin Image Settings Update | |
| CVE-2026-81651 | NextGEN Gallery < 4.5.0 - Authenticated Cross-Gallery Settings Modification via IDOR | |
| CVE-2026-87068 | Forminator Forms < 1.57.2.1 - Authenticated Privilege Escalation via Quiz Lead-Form Import | |
| CVE-2026-84223 | Kirki 6.0.0 - 6.3.0 - Author+ Stored XSS via Unsanitized SVG Upload | |
| CVE-2026-92540 | Import and export users and customers < 2.5.2 - Custom Role Privilege Escalation to Admini | |
| CVE-2026-82842 | SAML Single Sign On < 6.0.0 - Unauthenticated Privilege Escalation via Account Matching | |
| CVE-2026-87840 | Tripzzy < 1.5.1 - Unauthenticated Booking Data Tampering | |
| CVE-2026-87839 | Tripzzy < 1.5.1 - Unauthenticated Arbitrary Comment Deletion | |
| CVE-2026-92410 | Sign-up Sheets < 2.4.0 - Arbitrary Sign-up Deletion via CSRF | |
| CVE-2026-92423 | Meow Gallery < 5.5.5 - Author+ Draft and Private Post Disclosure via fetch_posts | |
| CVE-2026-92422 | Meow Gallery < 5.5.5 - Unauthenticated Arbitrary Shortcode Execution via load_gallery_coll | |
| CVE-2026-92965 | TikTok 1.2.0 - 1.4.1 - Unauthenticated OAuth Code Redemption | |
| CVE-2026-92541 | Import and export users and customers < 2.5.2 - Custom Role Privilege Escalation to Admini |
IV. Related Vulnerabilities
Same product: Forminator Forms
-
CVE-2026-87068
Forminator Forms < 1.57.2.1 - Authenticated Privilege Escala -
CVE-2026-19220
Forminator Forms < 1.57.1 - Unauthenticated Multisite Site C -
CVE-2026-19222
Forminator Forms < 1.57.0.7 - Authenticated Privilege Escala -
CVE-2026-19221
Forminator Forms < 1.57.0.5 - Admin+ Network-Wide RCE via Hu -
CVE-2024-7052
Forminator < 1.38.3 - Admin+ Stored XSS
Same vendor: Unknown
-
CVE-2026-92540
Import and export users and customers < 2.5.2 - Custom Role -
CVE-2026-92541
Import and export users and customers < 2.5.2 - Custom Role -
CVE-2026-92965
TikTok 1.2.0 - 1.4.1 - Unauthenticated OAuth Code Redemption -
CVE-2026-92422
Meow Gallery < 5.5.5 - Unauthenticated Arbitrary Shortcode E -
CVE-2026-92423
Meow Gallery < 5.5.5 - Author+ Draft and Private Post Disclo
V. Comments for CVE-2026-87067
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