Multiple cross-site scripting (XSS) vulnerabilities in the Welcart plugin before 1.4.18 for WordPress allow remote attackers to inject arbitrary web script or HTML via the usces_referer parameter to (1) classes/usceshop.class.php, (2) includes/edit-form-advanced.php, (3) includes/edit-form-advanced30.php, (4) includes/edit-form-advanced34.php, (5) includes/member_edit_form.php, (6) includes/order_edit_form.php, (7) includes/order_list.php, or (8) includes/usces_item_master_list.php, related to admin.php.

Multiple SQL injection vulnerabilities in admin.php in the Collne Welcart plugin before 1.5.3 for WordPress allow remote authenticated users to execute arbitrary SQL commands via the (1) search[column] or (2) switch parameter.

The Collne Welcart e-Commerce plugin before 1.8.3 for WordPress allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via crafted serialized data.

Cross-site scripting (XSS) vulnerability in the Collne Welcart e-Commerce plugin before 1.8.3 for WordPress allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2016-4827.

Cross-site scripting (XSS) vulnerability in the Collne Welcart e-Commerce plugin before 1.8.3 for WordPress allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2016-4826.

The Collne Welcart e-Commerce plugin before 1.8.3 for WordPress mishandles sessions, which allows remote attackers to obtain access by leveraging knowledge of the e-mail address associated with an account.

The usc-e-shop (aka Collne Welcart e-Commerce) plugin before 1.9.36 for WordPress allows Object Injection because of usces_unserialize. There is not a complete POP chain.

Cross-site scripting vulnerability in Welcart e-Commerce versions prior to 2.2.4 allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

The Welcart e-Commerce plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the download_orderdetail_list(), change_orderlist(), and download_member_list() functions called via admin_init 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.

The Welcart e-Commerce plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the usces_download_system_information() 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 WordPress plugin before 2.8.4 does not sanitise and escape some parameters, which could allow any authenticated users, such as subscriber to perform Stored Cross-Site Scripting attacks

The Welcart e-Commerce WordPress plugin before 2.8.4 does not have authorisation and CSRF in an AJAX action, allowing any logged-in user to create, update and delete shipping methods.

The Welcart e-Commerce WordPress plugin before 2.8.5 does not validate user input before using it to output the content of a file, which could allow unauthenticated attacker to read arbitrary files on the server

Unauth. Directory Traversal vulnerability in Welcart eCommerce plugin <= 2.7.7 on WordPress.

The Welcart e-Commerce WordPress plugin before 2.8.5 does not validate user input before using it to output the content of a file via an AJAX action available to any authenticated users, which could allow users with a role as low as subscriber to read arbitrary files on the server.

The Welcart e-Commerce WordPress plugin before 2.8.6 does not validate user input before using it in file_exist() functions via various AJAX actions available to any authenticated users, which could allow users with a role as low as subscriber to perform PHAR deserialisation when they can upload a file and a suitable gadget chain is present on the blog

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.

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

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.

Path traversal vulnerability in Welcart e-Commerce versions 2.7 to 2.8.21 allows a user with author or higher privilege to obtain partial information of the files on the web server.

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.

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 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 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.

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.

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.

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 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 unserializes user input from cookies, which could allow unautehtniacted users to perform PHP Object Injection when a suitable gadget is present on the blog

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