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CVE-2026-76547— Profile Builder < 4.0.1 - Admin+ PHP Object Injection via Import/Export

Quick assessment

Affected
Unknown User Profile Builder
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.

User Profile Builder WordPress 插件在 4.0.1 版本之前，在导入配置文件时未验证被反序列化的数据类型，使得高权限用户（如管理员）能够实施 PHP 对象注入。该受影响的功能是一个免费插件，且默认处于禁用状态。由于 User Profile Builder 插件在 4.0.1 版本之前本身不存在可利用的 POP 链，因此要进一步产生影响，还需要依赖其他已安装的、存在合适“小工具”（gadget）的插件或核心组件。

AI Predicted 7.5 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-76547

Vulnerability Information
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Vulnerability Title
Profile Builder < 4.0.1 - Admin+ PHP Object Injection via Import/Export
Source: CVE Program / CVE List V5
Vulnerability Description
The User Profile Builder WordPress plugin before 4.0.1 does not validate the type of data being deserialized when importing a configuration file, allowing high privilege users such as administrators to conduct PHP Object Injection. The affected feature is a free add-on which is disabled by default, and no POP chain is present in the User Profile Builder WordPress plugin before 4.0.1 itself, so further impact requires a suitable gadget from another installed User Profile Builder WordPress plugin before 4.0.1 or .
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 User Profile Builder 3.3.4 ~ 4.0.1 -

II. Public POCs for CVE-2026-76547

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III. Intelligence Information for CVE-2026-76547

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Other References for CVE-2026-76547 (1)

Same Patch Batch · Unknown · 2026-08-29 · 26 CVEs total

CVE-2026-76586 BookingPress 1.5.6 - 1.6.2 - Unauthenticated Booking Price Manipulation via PayPal Payment
CVE-2026-10522 Simple User Registration <= 6.9 - Unauthenticated Privilege Escalation to Administrator
CVE-2026-16061 Rest Routes <= 5.5.5 - Unauthenticated SQLi via custom-tables/tables/{table_name}
CVE-2026-16947 Total Processing Card Payments for WooCommerce <= 7.3 - Unauthenticated SSRF leading to Pa
CVE-2026-16600 SmartAIPress <= 1.2.0 - Subscriber+ Server-Side Request Forgery via smartaipress_openai_up
CVE-2026-16259 Uix UserCenter <= 1.0.3 - Unauthenticated Privilege Escalation
CVE-2026-17520 Newsletters < 4.17 - Unauthenticated API Access via Predictable API Key
CVE-2026-17522 Newsletters < 4.17 - Arbitrary Plugin Option Update via CSRF
CVE-2026-76546 Profile Builder < 4.0.1 - Contributor+ Stored XSS via Format Date Shortcode
CVE-2026-19430 CatFolders Document Gallery Pro < 2.0.7 - Unauthenticated Missing Authorization via downlo
CVE-2026-18234 MStore API < 4.21.1 - Subscriber+ Arbitrary Order Payment Bypass via Wallet
CVE-2026-18233 MStore API < 4.21.1 - Subscriber+ Arbitrary Order Completion
CVE-2026-76548 Profile Builder < 4.0.1 - Unauthenticated Unpublished Content and Media Modification via F
CVE-2026-81026 MasterStudy LMS < 3.7.40 - Unauthenticated Payment Bypass via PayPal IPN
CVE-2026-77010 HEL Online Classroom: AI-powered Online Classrooms <= 1.0.3 - Unauthenticated Moderator Jo
CVE-2026-77012 Icollect <= 1.0.0 - Unauthenticated Arbitrary File Read, SSRF and Path Traversal File Writ
CVE-2026-77008 HEL Online Classroom: AI-powered Online Classrooms <= 1.0.3 - Unauthenticated Plugin Setti
CVE-2026-77007 HEL Online Classroom: AI-powered Online Classrooms <= 1.0.3 - Unauthenticated BigBlueButto
CVE-2026-80311 Stripe Payment Forms by WP Full Pay < 8.5.5 - Cross-Customer Subscription Cancellation via
CVE-2026-80488 WP Ultimate CSV Importer < 9.0 - Admin+ SQLi via AIOSEO Import Fields

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: User Profile Builder
Same vendor: Unknown

V. Comments for CVE-2026-76547

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