The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Settlement Notification Parameters in all versions up to, and including, 2.12.2 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. The IPN endpoint accepts the 'rel' and 'option' parameters with no authentication, nonce validation, or signature verification, meaning any unauthenticated attacker can directly submit malicious payloads that are stored and later rendered in the administrator's settlement error log view.

The Welcart e-Commerce plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the 'uscesexport' action in all versions up to, and including, 2.11.24. This makes it possible for unauthenticated attackers to access configured payment credentials (ex. PayPal api secret) , as well as business contact details, mail templates, and other operational settings tied to the store.

Missing Authorization vulnerability in info@welcart Welcart e-Commerce usc-e-shop allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Welcart e-Commerce: from n/a through <= 2.11.24.

The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ordermail' setting in versions up to, and including, 2.11.22. This is due to insufficient sanitization on the ordermail field and a lack of escaping on output. This makes it possible for authenticated attackers, with Editor-level permissions and above, to inject arbitrary web scripts via the General Setting page that will execute when an administrator accesses the E-mail Setting page.

The Welcart e-Commerce plugin for WordPress is vulnerable to SQL Injection via the cookie in all versions up to, and including, 2.11.21 due to insufficient escaping on the user supplied value and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Author-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via settings in all versions up to, and including, 2.11.20 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfilteredhtml has been disabled.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in info@welcart Welcart e-Commerce usc-e-shop allows Stored XSS.This issue affects Welcart e-Commerce: from n/a through <= 2.11.20.

Deserialization of Untrusted Data vulnerability in info@welcart Welcart e-Commerce usc-e-shop allows Object Injection.This issue affects Welcart e-Commerce: from n/a through <= 2.11.16.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in info@welcart Welcart e-Commerce usc-e-shop allows Path Traversal.This issue affects Welcart e-Commerce: from n/a through <= 2.11.13.

Welcart e-Commerce 2.11.6 and earlier versions contains an untrusted data deserialization vulnerability. If this vulnerability is exploited, arbitrary code may be executed by a remote unauthenticated attacker who can access websites created using the product.

The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘name’ parameter in all versions up to, and including, 2.11.9 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.

Welcart e-Commerce prior to 2.11.2 contains a cross-site scripting vulnerability. If this vulnerability is exploited, an arbitrary script may be executed on the user's web browser.

SQL injection vulnerability in Welcart e-Commerce prior to 2.11.2 allows an attacker who can login to the product to obtain or alter the information stored in the database.

Missing Authorization vulnerability in Welcart Inc. Welcart e-Commerce.This issue affects Welcart e-Commerce: from n/a through 2.9.14.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Collne Inc. Welcart e-Commerce.This issue affects Welcart e-Commerce: from n/a through 2.9.3.

The Welcart e-Commerce plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.9.6 via the uploadcertificatefile function. This makes it possible for administrators to upload .pem or .crt files to arbitrary locations on the server.

The Welcart e-Commerce WordPress plugin before 2.9.5 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The Welcart e-Commerce WordPress plugin before 2.9.5 does not validate files to be uploaded, as well as does not have authorisation and CSRF in an AJAX action handling such upload. As a result, any authenticated users, such as subscriber could upload arbitrary files, such as PHP on the server

The Welcart e-Commerce WordPress plugin before 2.9.5 unserializes user input from cookies, which could allow unautehtniacted users to perform PHP Object Injection when a suitable gadget is present on the blog

Cross-site scripting vulnerability in Order Data Edit page of Welcart e-Commerce versions 2.7 to 2.8.21 allows a remote unauthenticated attacker to inject an arbitrary script.

SQL injection vulnerability in Order Data Edit page of Welcart e-Commerce versions 2.7 to 2.8.21 allows a user with editor (without setting authority) or higher privilege to perform unintended database operations.

SQL injection vulnerability in Item List page of Welcart e-Commerce versions 2.7 to 2.8.21 allows a user with author or higher privilege to obtain sensitive information.

Cross-site scripting vulnerability in Item List page of Welcart e-Commerce versions 2.7 to 2.8.21 allows a remote unauthenticated attacker to inject an arbitrary script.

Cross-site scripting vulnerability in Credit Card Payment Setup page of Welcart e-Commerce versions 2.7 to 2.8.21 allows a remote unauthenticated attacker to inject an arbitrary script in the page.

Cross-site scripting vulnerability in Item List page registration process of Welcart e-Commerce versions 2.7 to 2.8.21 allows a remote unauthenticated attacker to inject an arbitrary script.

Welcart e-Commerce versions 2.7 to 2.8.21 allows a user with editor or higher privilege to upload an arbitrary file to an unauthorized directory.

The Welcart e-Commerce plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the uscesdownloadsysteminformation() function in versions up to, and including, 2.2.7. This makes it possible for authenticated attackers to download information including WordPress settings, plugin settings, PHP settings and server settings.

The Welcart e-Commerce plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the downloadorderdetaillist(), changeorderlist(), and downloadmemberlist() functions called via admininit hooks in versions up to, and including, 2.2.7. This makes it possible for unauthenticated attackers to download lists of members, products and orders.

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Collne Inc. Welcart e-Commerce plugin <= 2.8.10 versions.

The Welcart e-Commerce WordPress plugin before 2.8.9 does not validate and escapes one of its shortcode attributes, which could allow users with a role as low as a contributor to perform a Stored Cross-Site Scripting attack.