Description
The Quick Event Manager WordPress plugin before 9.19 does not verify the authenticity of PayPal payment notifications before marking event registrations as paid, which could allow unauthenticated attackers to mark registrations as paid without making a payment.
Published: 2026-11-06
Score: 5.3 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 06 Nov 2026 08:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-613
CWE-639

Fri, 06 Nov 2026 07:45:00 +0000

Type Values Removed Values Added
Description The Quick Event Manager WordPress plugin before 9.19 does not verify the authenticity of PayPal payment notifications before marking event registrations as paid, which could allow unauthenticated attackers to mark registrations as paid without making a payment.
Title Quick Event Manager 9.9.5 - 9.18 - Unauthenticated PayPal IPN Verification Bypass via the 'debug' Parameter
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-11-06T07:30:57.215Z

Reserved: 2026-11-03T17:17:40.133Z

Link: CVE-2026-121636

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T08:17:20.103

Modified: 2026-11-06T08:17:20.103

Link: CVE-2026-121636

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T08:30:15Z

Weaknesses
  • CWE-613

    Insufficient Session Expiration

  • CWE-639

    Authorization Bypass Through User-Controlled Key