CVE-2026-1890— LeadConnector < 3.0.22 - Unauthenticated Rest Call
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I. Basic Information for CVE-2026-1890
Vulnerability Information
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Vulnerability Title
LeadConnector < 3.0.22 - Unauthenticated Rest Call
Source: NVD (National Vulnerability Database)
Vulnerability Description
The LeadConnector WordPress plugin before 3.0.22 does not have authorization in a REST route, allowing unauthenticated users to call it and overwrite existing data
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 LeadConnector 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 LeadConnector 3.0.22之前版本存在安全漏洞，该漏洞源于REST路由中缺少授权，可能导致未经验证的用户调用并覆盖现有数据。
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 | LeadConnector | 0 ~ 3.0.22 | - |
II. Public POCs for CVE-2026-1890
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|---|
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- LeadConnector < 3.0.22 – Unauthenticated Rest Call | CVE 2026-1890 | Plugin Vulnerabilitiesexploitvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-1890
Same Patch Batch · Unknown · 2026-03-26 · 4 CVEs total
| CVE-2026-1430 | WP Lightbox 2 < 3.0.7 - Admin+ Stored XSS | |
| CVE-2025-15488 | Responsive Plus < 3.4.3 - Unauthenticated Arbitrary Shortcode Execution | |
| CVE-2025-15433 | Shared Files < 1.7.58 - Contributor+ Arbitrary File Download |
IV. Related Vulnerabilities
Same product: LeadConnector
Same vendor: Unknown
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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-2026-1890
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