CVE-2026-1900— Link Whisper Free < 0.9.1 - Unauthenticated Settings and User Meta Update
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I. Basic Information for CVE-2026-1900
Vulnerability Information
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Vulnerability Title
Link Whisper Free < 0.9.1 - Unauthenticated Settings and User Meta Update
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Link Whisper Free WordPress plugin before 0.9.1 has a publicly accessible REST endpoint that allows unauthenticated settings updates.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Link Whisper Free 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Link Whisper Free 0.9.1之前版本存在安全漏洞，该漏洞源于存在可公开访问的REST端点，允许未经验证的攻击者更新设置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | Link Whisper Free | 0 ~ 0.9.1 | - |
II. Public POCs for CVE-2026-1900
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Unknown · 2026-04-07 · 3 CVEs total
| CVE-2025-15611 | Popup Box AYS Pro < 5.5.0 - Admin+ Stored Cross-Site Scripting (XSS) via CSRF | |
| CVE-2026-4079 | SQL Chart Builder < 2.3.8 - Unauthenticated SQL Injection |
IV. Related Vulnerabilities
Same product: Link Whisper Free
- CVE-2026-22357
WordPress Link Whisper Free plugin <= 0.9.2 - Cross Site Scr - CVE-2025-67927
WordPress Link Whisper Free plugin <= 0.8.8 - Cross Site Scr - CVE-2025-11263
Link Whisper Free <= 0.8.8 - Reflected Cross-Site Scripting - CVE-2025-62970
WordPress Link Whisper Free plugin <= 0.9.2 - Broken Access - CVE-2025-22306
WordPress Link Whisper Free plugin <= 0.7.7 - Sensitive Data
Same vendor: Unknown
- CVE-2026-6433
Custom CSS JS PHP <= 2.0.7 - Unauthenticated SQL Injection t - CVE-2026-4935
SureTriggers < 1.1.23 – Unauthenticated SQLi - CVE-2026-5335
Magic Export & Import < 1.2.0 - Unauthenticated PII Disclosu - CVE-2026-5337
Frontend File Manager Plugin <= 23.6 - Subscriber+ Arbitrary - CVE-2026-5306
Check & Log Email < 2.0.13 - Unauthenticated Stored XSS
V. Comments for CVE-2026-1900
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