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CVE-2026-8608— Event Monster <= 2.1.0 - Unauthenticated Insufficient Verification of Data Authenticity to Payment Bypass via em_capture_payment AJAX Action

Quick assessment

Affected
awordpresslife Event Monster – Event Manager, Ticket Booking & 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.

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 Event Monster – Event Management, Events Calendar, Tickets 2.1.0及之前版本存在数据伪造问题漏洞，该漏洞源于capture_payment() AJAX处

CVSS 5.3 · Medium EPSS 0.17% · P6

Affected Version Matrix 1

VendorProduct Version RangeStatus
awordpresslife Event Monster – Event Manager, Ticket Booking & Registration ≤ 2.1.0 affected
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I. Basic Information for CVE-2026-8608

Vulnerability Information
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Vulnerability Title
Event Monster <= 2.1.0 - Unauthenticated Insufficient Verification of Data Authenticity to Payment Bypass via em_capture_payment AJAX Action
Source: CVE Program / CVE List V5
Vulnerability Description
The Event Monster – Event Management, Events Calendar, Tickets plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to, and including, 2.1.0. This is due to the capture_payment() AJAX handler (registered via wp_ajax_nopriv_em_capture_payment) trusting client-supplied payment data — including transaction ID, amount, and payment status — without performing any server-side verification against the PayPal API or any other payment gateway, and without nonce or capability checks. This makes it possible for unauthenticated attackers to forge payment records, mark bookings as Completed, and obtain confirmation emails containing valid QR code tickets without making any actual payment.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Event Monster – Event Management, Events Calendar, Tickets 数据伪造问题漏洞
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 Event Monster – Event Management, Events Calendar, Tickets 2.1.0及之前版本存在数据伪造问题漏洞，该漏洞源于capture_payment() AJAX处
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
awordpresslife Event Monster – Event Manager, Ticket Booking & Registration 0 ~ 2.1.0 -

II. Public POCs for CVE-2026-8608

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III. Intelligence Information for CVE-2026-8608

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Patches & Fixes for CVE-2026-8608 (1)

Vendor Pages for CVE-2026-8608 (1)

IV. Related Vulnerabilities

Same vendor: awordpresslife
Same weakness: CWE-345

V. Comments for CVE-2026-8608

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