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CVE-2026-92403— Secure Custom Fields < 6.9.4 - Unauthenticated Post Modification via Front-End Form ID Substitution

Quick assessment

Affected
Unknown Secure Custom Fields
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.

Secure Custom Fields WordPress 插件在 6.9.4 版本之前未能正确验证前端表单提交是否对应于呈现给访问者的那个表单，因此未认证用户可以向其他已注册的表单进行提交，并修改该表单所关联帖子的标题和内容。

AI Predicted 7.2 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-92403

Vulnerability Information
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Vulnerability Title
Secure Custom Fields < 6.9.4 - Unauthenticated Post Modification via Front-End Form ID Substitution
Source: CVE Program / CVE List V5
Vulnerability Description
The Secure Custom Fields WordPress plugin before 6.9.4 does not properly verify that a front-end form submission corresponds to the form that was rendered to the visitor, allowing unauthenticated users to submit against a different registered form and modify the title and content of the post that form is bound to.
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 Secure Custom Fields 0 ~ 6.9.4 -

II. Public POCs for CVE-2026-92403

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III. Intelligence Information for CVE-2026-92403

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Vendor Advisories for CVE-2026-92403 (1)

Same Patch Batch · Unknown · 2026-09-19 · 21 CVEs total

CVE-2026-86814 UsersWP - Social Login < 1.5.10 - Unauthenticated Account Takeover via Unverified Provider
CVE-2025-15698 Business Name Generator <= 1.3 - Admin+ Stored XSS via Button Color Setting
CVE-2026-19860 JetFormBuilder 3.5.6.2 - 3.6.5.2 - Admin+ Arbitrary File Deletion via Server-Side Validati
CVE-2026-16557 Nimble Builder <= 3.3.8 - Subscriber+ Non-Public Content Disclosure via sek_get_nimble_con
CVE-2026-84750 Ultimate Addons for Contact Form 7 3.2.4 - 3.5.50 - Unauthenticated Arbitrary File Upload
CVE-2026-76554 WP Import Export Lite < 3.9.35 - Authenticated Privilege Escalation via User Import
CVE-2026-76790 Estatik < 4.3.5 - Reflected XSS via get_listings hash Parameter
CVE-2026-85574 Unbounce Landing Pages 1.1.1 - 1.1.4 - Subscriber+ Reverse-Proxy Target Hijack via set_unb
CVE-2026-85680 Ultimate Member < 2.13.1 - Unauthenticated Stored XSS via Profile Page Title
CVE-2026-86591 Botiga Pro < 1.6.5 - Unauthenticated Arbitrary Blog Options Update via Templates Builder R
CVE-2026-92435 Mailchimp for WooCommerce < 6.1.1 - Unauthenticated Broken Access Control in REST API
CVE-2026-91847 Bookly < 28.2 - Unauthenticated AI Assistant Conversation Disclosure and Message Injection
CVE-2026-92099 WPGraphQL Smart Cache < 2.3.2 - Unauthenticated Persisted Query Registration and Alias Squ
CVE-2026-88824 Master Blocks 1.4.1 - 1.4.1.4 - Unauthenticated Stored XSS via White Label Settings
CVE-2026-88926 VikRentItems Flexible Rental Management System < 1.2.4 - Unauthenticated SQLi
CVE-2026-92404 MgoSync 2.1.5 - 2.1.6 - Unauthenticated WooCommerce API Credential Disclosure
CVE-2026-92425 Hydra Booking < 1.2.4 - Hydra Host+ Cross-Host Account Modification and Deletion via IDOR
CVE-2026-92420 Hydra Booking < 1.2.2 - Hydra Host+ Cross-Host Booking Deletion and Modification via IDOR
CVE-2026-92421 Hydra Booking 1.1.0 - < 1.2.3 - Hydra Host+ Host Profile Takeover via IDOR
CVE-2026-92430 Rede Itaú for WooCommerce < 5.4.7 - Unauthenticated Order Status Manipulation via PIX Webh

IV. Related Vulnerabilities

Same product: Secure Custom Fields
Same vendor: Unknown

V. Comments for CVE-2026-92403

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