---
title: "CVE-2026-17553: WP EasyCart - Privilege Escalation"
description: "WP EasyCart <= 5.9.3 contains a privilege escalation caused by insecure update_option() calls in ec_ajax_save_page_default_options() AJAX handler, letting authenticated Store Manager-level users escalate to administrator by modifying WordPress options, exploit requires authenticated user with Store Manager or higher privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-17553/
---

# CVE-2026-17553 WP EasyCart - Privilege Escalation

WP EasyCart <= 5.9.3 contains a privilege escalation caused by insecure update\_option() calls in ec\_ajax\_save\_page\_default\_options() AJAX handler, letting authenticated Store Manager-level users escalate to administrator by modifying WordPress options, exploit requires authenticated user with Store Manager or higher privileges.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.43% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-17553)

## Details

Type

Privilege Escalation

Impact

Privilege Escalation

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Published

9 September 2026

Updated

15 October 2026

Weakness

[CWE-269](https://cwe.mitre.org/data/definitions/269.html)

## Vendor fix

Update to a version later than 5.9.3 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-17553](https://nvd.nist.gov/vuln/detail/CVE-2026-17553)
- [https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7107](https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7107)
- [https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7110](https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7110)
- [https://plugins.trac.wordpress.org/changeset?reponame=&old=3681924%40wp-easycart&new=3681924%40wp-easycart](https://plugins.trac.wordpress.org/changeset?reponame=&old=3681924%40wp-easycart&new=3681924%40wp-easycart)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/08e62276-f004-48ca-bb00-2f81e6ac4892?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/08e62276-f004-48ca-bb00-2f81e6ac4892?source=cve)
- [https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/admin/inc/wp\_easycart\_admin.php#L209](https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/admin/inc/wp_easycart_admin.php#L209)
- [https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/design/layout/base-responsive-v3/ec\_product\_page.php#L415](https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/design/layout/base-responsive-v3/ec_product_page.php#L415)
- [https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7103](https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7103)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)