The SureCart WordPress plugin before 4.9.5 does not restrict which related objects an anonymous visitor may include when reading a single upsell funnel through its REST API, nor strip private fields from those objects, allowing unauthenticated users to read merchant-private catalog data such as pricing, commission, stock, SKU and tax internals, including unpublished products.

The SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.9.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful execution requires the affected comment to appear on a post that loads the surecart-components runtime (e.g. via a [scbuybutton] shortcode) and contains no sc-checkout element, as these conditions trigger the innerHTML sink in sc-cart-loader.

Shop Worker Privilege Escalation in SureCart <= 4.7.2 versions.

The SureCart WordPress plugin before 4.7.0 does not consult the site's user registration setting before creating WordPress accounts, allowing unauthenticated users to create an account and receive a logged-in session even when registration is disabled.

Unauthenticated Broken Access Control in SureCart <= 4.6.2 versions.

The SureCart plugin for WordPress is vulnerable to privilege escalation via account takeover in versions up to, and including, 4.2.3. This is due to the plugin not properly validating a user's identity prior to updating their details like email during customer profile synchronization from webhook events. This makes it possible for unauthenticated attackers to change linked user's email addresses, including administrators if the administrator account is linked to a SureCart customer record, and leverage that to reset the user's password and gain access to their account if the customer ID is known.

SureCart version prior to 4.2.1 are vulnerable to authenticated SQL injection via multiple parameters ('modelname', 'modelid', 'integrationid', 'provider') on the REST API endpoint '/surecart/v1/integrations/{id}'.

The root cause is a flawed escaping bypass in the query builder ('wp-query-builder'). Values passed to the 'where()' method are only sanitized via '$wpdb->prepare()' when they do not contain a dot ('.') or the WordPress table prefix ('wp'). By including a dot anywhere in the payload, an attacker completely bypasses the escaping logic and injects arbitrary SQL into the 'WHERE' clause, allowing full UNION-based extraction of the database.

Missing Authorization vulnerability in SureCart SureCart surecart allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects SureCart: from n/a through <= 4.0.2.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in SureCart allows Reflected XSS.This issue affects SureCart: from n/a through 2.29.3.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in SureCart WordPress Ecommerce For Creating Fast Online Stores plugin <= 2.5.0 versions.