Shopping Cart & eCommerce Store <= 5.9.3 - Authenticated (Store Manager+) Privilege Escalation to ec_ajax_save_page_default_options AJAX Action
| CVE | CVE-2026-17553 |
|---|---|
| CVSS | 7.2 (High) |
| Publicly Published | September 8, 2026 |
| Last Updated | September 9, 2026 |
| Researcher |
Wordfence PRISM
- Wordfence
|
Description
The WP EasyCart plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.9.3. This is due to the ec_ajax_save_page_default_options() AJAX handler iterating over every $_POST key and passing it directly into update_option() without any allowlist, while gating the handler only on 'manage_options' OR the plugin's custom 'wpec_manager' capability. The plugin's built-in 'wpec_store_manager' role holds 'wpec_manager' but not 'manage_options', and the required nonce is emitted on frontend product/category templates that render for any user with 'wpec_manager'. This makes it possible for authenticated attackers, with Store Manager-level access and above, to elevate their privileges to administrator by updating arbitrary WordPress options such as default_role='administrator' and users_can_register='1', then self-registering a new account that is assigned the administrator role.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for WP EasyCart: Shopping Cart and eCommerce Store
| Software Type | Plugin |
|---|---|
| Software Slug | wp-easycart (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 5.9.4, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in WP EasyCart: Shopping Cart and eCommerce Store
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