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CVE-2026-14558— WP User Frontend < 4.3.10 - Editor+ PHP Object Injection via AI Form Builder

Quick assessment

Affected
Unknown User Frontend
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.

以下是该漏洞描述的中文翻译： User Frontend WordPress 插件在 4.3.10 版本之前，未正确验证字段类型定义，并在渲染提交的帖子时反序列化由用户控制的后置元数据。这使得拥有编辑（Editor）级别及以上权限的用户能够注入任意 PHP 对象；若站点存在合适的 POP（Property Object Pointer，属性对象指针）链，可能导致远程代码执行（RCE）。

AI Predicted 8.8 Difficulty: Moderate EPSS 0.36% · P29

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown User Frontend < 4.3.10 affected
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I. Basic Information for CVE-2026-14558

Vulnerability Information
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Vulnerability Title
WP User Frontend < 4.3.10 - Editor+ PHP Object Injection via AI Form Builder
Source: CVE Program / CVE List V5
Vulnerability Description
The User Frontend WordPress plugin before 4.3.10 does not properly validate field type definitions and deserialises user-controlled post metadata when rendering submitted posts, allowing users with Editor-level access and above to inject arbitrary PHP objects, which can lead to remote code execution when a suitable POP chain is present on the site.
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 Frontend 0 ~ 4.3.10 -

II. Public POCs for CVE-2026-14558

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III. Intelligence Information for CVE-2026-14558

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Vendor Advisories for CVE-2026-14558 (1)

Same Patch Batch · Unknown · 2026-08-28 · 11 CVEs total

CVE-2026-79996 User Registration & Membership < 5.2.6 - Authenticated Privilege Escalation via Login Sett
CVE-2026-77701 WCFM Marketplace < 3.8.2 - Unauthenticated Refund Request Creation on Guest Orders
CVE-2026-19423 Ultimate Member 2.6.7 - 2.12.1 - Unauthenticated Privilege Escalation via Role Field on Pr
CVE-2026-79706 Breeze Cache < 2.5.13 - Unauthenticated File Creation via Cache Path Traversal
CVE-2026-79995 User Registration & Membership < 5.2.5 - Subscriber+ Pending Email Change Cancellation via
CVE-2026-79615 Quiz And Survey Master < 11.2.4 - Contributor+ Cross-Quiz Question Bank and Answer Key Dis
CVE-2026-19084 Shared Files < 1.7.70 - Unauthenticated Arbitrary File Read
CVE-2026-14567 WP User Frontend < 4.3.10 - Unauthenticated User Email and Phone Disclosure via User Direc
CVE-2026-12514 Shared Files < 1.7.70 - Unauthenticated Limited File Upload
CVE-2026-12513 Shared Files < 1.7.68 - Unauthenticated Arbitrary File Deletion via Path Traversal

IV. Related Vulnerabilities

Same product: User Frontend
Same vendor: Unknown

V. Comments for CVE-2026-14558

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