CVE-2026-93511: CWE-290 Authentication Bypass by Spoofing in Premium Packages
The Premium Packages WordPress plugin before 7.2.1 does not verify PayPal's webhook signature before processing payment and subscription notifications, allowing unauthenticated attackers to forge payment confirmations and subscription-cancellation events against any order whose transaction id they know.
AI Analysis
Technical Summary
CVE-2026-93511 is an authentication bypass vulnerability (CWE-290) in the Premium Packages WordPress plugin prior to version 7.2.1. The plugin fails to verify the authenticity of PayPal webhook notifications, allowing attackers to spoof these notifications. This enables attackers to forge payment confirmations and subscription cancellations for any order if they know the transaction ID. The vulnerability affects versions >=7.0.0 and <7.2.1.
Potential Impact
An attacker can impersonate PayPal webhook notifications without authentication, potentially causing unauthorized payment confirmations or subscription cancellations. This could lead to fraudulent access or denial of service for legitimate subscribers. The impact is limited to orders where the attacker knows the transaction ID.
Mitigation Recommendations
Upgrade the Premium Packages plugin to version 7.2.1 or later, where this vulnerability is fixed by verifying PayPal webhook signatures before processing notifications. No other mitigation is indicated.
CVE-2026-93511: CWE-290 Authentication Bypass by Spoofing in Premium Packages
Description
The Premium Packages WordPress plugin before 7.2.1 does not verify PayPal's webhook signature before processing payment and subscription notifications, allowing unauthenticated attackers to forge payment confirmations and subscription-cancellation events against any order whose transaction id they know.
Affected software
Premium Packages
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-93511 is an authentication bypass vulnerability (CWE-290) in the Premium Packages WordPress plugin prior to version 7.2.1. The plugin fails to verify the authenticity of PayPal webhook notifications, allowing attackers to spoof these notifications. This enables attackers to forge payment confirmations and subscription cancellations for any order if they know the transaction ID. The vulnerability affects versions >=7.0.0 and <7.2.1.
Potential Impact
An attacker can impersonate PayPal webhook notifications without authentication, potentially causing unauthorized payment confirmations or subscription cancellations. This could lead to fraudulent access or denial of service for legitimate subscribers. The impact is limited to orders where the attacker knows the transaction ID.
Mitigation Recommendations
Upgrade the Premium Packages plugin to version 7.2.1 or later, where this vulnerability is fixed by verifying PayPal webhook signatures before processing notifications. No other mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-18T08:45:53.297Z
- State
- PUBLISHED
Threat ID: 6ab36d45f7a7c541065abcd4
Added to database: 09/23/2026, 06:10:13 UTC
Last enriched: 09/23/2026, 06:17:41 UTC
Last updated: 09/23/2026, 08:55:57 UTC
Views: 7
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