CVE-2026-109699— WordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
Quick assessment
Affected
ThemeGrill User Registration
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.
ThemeGrill User Registration 插件（user-registration）中存在“缺少授权”漏洞，该漏洞可导致利用配置不当的访问控制安全级别问题。此漏洞影响 User Registration 插件：从 n/a 至 5.2.8 版本。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ThemeGrill | User Registration | ≤ 5.2.8 |
affected |
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I. Basic Information for CVE-2026-109699
Vulnerability Information
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Vulnerability Title
WordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Missing Authorization vulnerability in ThemeGrill User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through 5.2.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ThemeGrill | User Registration | 0 ~ 5.2.8 | - |
|
II. Public POCs for CVE-2026-109699
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-109699 (1)
Same Patch Batch · ThemeGrill · 2026-10-13 · 5 CVEs total
| CVE-2026-105881 | 6.5 MEDIUM | WordPress User Registration plugin <= 5.2.8 - Cross Site Scripting (XSS) vulnerability |
| CVE-2026-103076 | 5.4 MEDIUM | WordPress User Registration plugin <= 5.2.8 - Cross Site Request Forgery (CSRF) vulnerabil |
| CVE-2026-106597 | 5.3 MEDIUM | WordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability |
| CVE-2026-106598 | 5.3 MEDIUM | WordPress User Registration plugin <= 5.2.8 - Sensitive Data Exposure vulnerability |
IV. Related Vulnerabilities
Same product: User Registration
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CVE-2026-106598
WordPress User Registration plugin <= 5.2.8 - Sensitive Data -
CVE-2026-105881
WordPress User Registration plugin <= 5.2.8 - Cross Site Scr -
CVE-2026-103076
WordPress User Registration plugin <= 5.2.8 - Cross Site Req -
CVE-2026-106597
WordPress User Registration plugin <= 5.2.8 - Broken Access -
CVE-2026-96334
WordPress User Registration plugin <= 5.2.7 - Broken Access
Same vendor: ThemeGrill
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CVE-2026-106597
WordPress User Registration plugin <= 5.2.8 - Broken Access -
CVE-2026-96334
WordPress User Registration plugin <= 5.2.7 - Broken Access
Same weakness: CWE-862
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V. Comments for CVE-2026-109699
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