The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies.
Metrics
Affected Vendors & Products
References
History
Wed, 12 Aug 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-502 |
Wed, 12 Aug 2026 06:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies. | |
| Title | WooCommerce Subscriptions < 9.1.0 - Unauthenticated RCE via PHP Object Injection | |
| References |
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Status: PUBLISHED
Assigner: WPScan
Published:
Updated: 2026-08-12T06:00:17.487Z
Reserved: 2026-07-30T14:11:55.443Z
Link: CVE-2026-18391
No data.
Status : Received
Published: 2026-08-12T06:20:14.167
Modified: 2026-08-12T06:20:14.167
Link: CVE-2026-18391
No data.
OpenCVE Enrichment
Updated: 2026-08-12T12:45:02Z