FluentCart A New Era of eCommerce <= 1.7.0 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'order_id' and 'billing_address_id' Parameters

Summary

The FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.7.0 via the 'order_id + billing_address_id (also shipping_address_id)' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to read and exfiltrate another customer's stored billing and shipping address PII — including street address, city, state, postcode, phone number, company name, VAT number, and legal registration ID — by enumerating sequential AUTO_INCREMENT order and address ID pairs. The id-equality guard intended to restrict address reuse is bypassed because the attacker controls both halves of the compared pair, and the unauthenticated AJAX entry point imposes only a soft rate limit of 5 requests per 60 seconds rather than any authentication or ownership check.

Timeline

1. Oct 16, 2026, 4:27 AM UTCCVE published
2. Oct 16, 2026, 2:51 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: yes · Technical impact: partial

3. Oct 16, 2026, 3:09 PM UTCRecord last updated

Affected versions

• wpmanageninja FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler

  through 1.7.0

References 6