CVE-2026-66451— WordPress WP Event SOlution plugin <= 4.1.9 - Broken Authentication vulnerability
Quick assessment
Affected
Arraytics WP Event SOlution
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.
WordPress Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce是WordPress基金会的一个事件解决方案的Web中间件。 WordPress Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce 4.1.9及之前版本存在授权问题漏洞，该漏洞源于身份验证机制失效，可能导致未经身份验证的攻击者绕过身份验证。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Arraytics | WP Event SOlution | n/a≤ 4.1.9 |
affected |
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I. Basic Information for CVE-2026-66451
Vulnerability Information
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Vulnerability Title
WordPress WP Event SOlution plugin <= 4.1.9 - Broken Authentication vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Broken Authentication in WP Event SOlution <= 4.1.9 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce是WordPress基金会的一个事件解决方案的Web中间件。 WordPress Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce 4.1.9及之前版本存在授权问题漏洞，该漏洞源于身份验证机制失效，可能导致未经身份验证的攻击者绕过身份验证。
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 |
|---|---|---|---|---|
| Arraytics | WP Event SOlution | n/a ~ 4.1.9 | - |
|
II. Public POCs for CVE-2026-66451
| # | POC Description | Source Link | Shenlong Link |
|---|
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News Coverage for CVE-2026-66451 (1)
IV. Related Vulnerabilities
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-
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Same weakness: CWE-288
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V. Comments for CVE-2026-66451
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