CVE-2026-105882— WordPress User Registration plugin <= 5.2.8 - Cross Site Scripting (XSS) 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.
在主题框架 ThemeGrill 的用户注册插件 user-registration 中存在一种“网页生成过程中输入中性化处理不当”（即跨站脚本攻击，Cross-site Scripting）的漏洞，允许存储型跨站脚本攻击（Stored XSS）。该问题影响 User Registration 插件的以下版本：从最初版本（n/a）至 5.2.8 版本。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScriptAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ThemeGrill | User Registration | ≤ 5.2.8 |
affected |
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I. Basic Information for CVE-2026-105882
Vulnerability Information
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Vulnerability Title
WordPress User Registration plugin <= 5.2.8 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeGrill User Registration user-registration allows Stored XSS.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:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
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-2026-105882
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-105882 (1)
IV. Related Vulnerabilities
Same product: User Registration
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CVE-2026-109692
WordPress User Registration plugin <= 5.2.8 - Broken Access -
CVE-2026-109699
WordPress User Registration plugin <= 5.2.8 - Broken Access -
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
Same vendor: ThemeGrill
-
CVE-2026-109692
WordPress User Registration plugin <= 5.2.8 - Broken Access -
CVE-2026-109699
WordPress User Registration plugin <= 5.2.8 - Broken Access -
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
Same weakness: CWE-79
-
CVE-2026-96339
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HivePress <= 1.7.32 - Unauthenticated Stored Cross-Site Scri -
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WPeMatico RSS Feed Fetcher <= 2.9 - Unauthenticated Stored C -
CVE-2026-97640
WPConsent <= 1.1.9 - Unauthenticated Stored Cross-Site Scrip -
CVE-2026-107768
TranslatePress <= 3.3.7 - Unauthenticated Stored Cross-Site
V. Comments for CVE-2026-105882
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