Insufficient Validation in Subscriptions for WooCommerce Plugin Exposes Sensitive Data
CVE-2026-87854
Currently unrated
Key Information:
- Vendor
WordPress
- Vendor
- CVE Published:
- 16 September 2026
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👾 Exploit Exists🟡 Public PoC
What is CVE-2026-87854?
The Subscriptions for WooCommerce plugin, prior to version 2.0.3, contains a vulnerability that fails to properly validate the shared secret for one of its REST endpoints. This security oversight allows unauthenticated users to access a complete list of the store's subscriptions. The exposed data includes sensitive information such as customer usernames, product names, recurring payment amounts, and payment dates. Remedying this flaw is essential to protect user confidentiality and secure financial transactions.
Affected Version(s)
Subscriptions for WooCommerce 0 < 2.0.3
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.