The WooCommerce plugin for WordPress is vulnerable to PostMessage-Based Cross-Site Scripting via the 'customize-store' page in all versions up to, and including, 9.4.2 due to insufficient input sanitization and output escaping on PostMessage data. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The WooCommerce plugin for WordPress is vulnerable to HTML Injection in all versions up to, and including, 9.0.2. This is due to the plugin not properly neutralizing HTML elements from submitted order forms. This makes it possible for unauthenticated attackers to inject arbitrary HTML that will render when the administrator views order form submissions.

Impact A vulnerability introduced in WooCommerce 8.8 allows for cross-site scripting. A bad actor can manipulate a link to include malicious HTML & JavaScript content. While the content is not saved to the database, the links may be sent to victims for malicious purposes. The injected JavaScript could hijack content & data stored in the browser, including the session. The URL content is read through the Sourcebuster.js library and then inserted without proper sanitization to the classic checkout and registration forms.

Patches diff diff --git a/plugins/woocommerce/client/legacy/js/frontend/order-attribution.js b/plugins/woocommerce/client/legacy/js/frontend/order-attribution.js index 79411e928e1..25eaa721c54 100644 --- a/plugins/woocommerce/client/legacy/js/frontend/order-attribution.js +++ b/plugins/woocommerce/client/legacy/js/frontend/order-attribution.js @@ -155,12 +155,16 @@ but it's not yet supported in Safari. / connectedCallback() { - let inputs = ''; + this.innerHTML = ''; + const inputs = new DocumentFragment(); for( const fieldName of this.fieldNames ) { - const value = stringifyFalsyInputValue( this.values[ fieldName ] ); - inputs += <input type="hidden" name="${params.prefix}${fieldName}" value="${value}"/>; + const input = document.createElement( 'input' ); + input.type = 'hidden'; + input.name = ${params.prefix}${fieldName}; + input.value = stringifyFalsyInputValue( ( this.values && this.values[ fieldName ] ) || '' ); + inputs.appendChild( input ); } - this.innerHTML = inputs; + this.appendChild( inputs ); } /

Workarounds Disabling the Order Attribution feature

References A8C SIRT: p3btAN-2L2-p2 (internal) Public disclosure: https://developer.woocommerce.com/2024/06/10/developer-advisory-xss-vulnerability-8-8-0/

Cross-Site Request Forgery (CSRF) vulnerability in Automattic WooCommerce.This issue affects WooCommerce: from n/a through 8.2.2.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in PI Websolution Product page shipping calculator for WooCommerce plugin <= 1.3.25 versions.

The WooCommerce WordPress plugin before 6.6.0 is vulnerable to stored HTML injection due to lack of escaping and sanitizing in the payment gateway titles

When taxes are enabled, the "Additional tax classes" field was not properly sanitised or escaped before being output back in the admin dashboard, allowing high privilege users such as admin to use XSS payloads even when the unfilteredhtml is disabled

The WooCommerce plugin before 4.7.0 for WordPress allows remote attackers to view the status of arbitrary orders via the orderid parameter in a fetchorderstatus action.

WooCommerce before 3.6.5, when it handles CSV imports of products, has a cross-site request forgery (CSRF) issue with resultant stored cross-site scripting (XSS) via includes/admin/importers/class-wc-product-csv-importer-controller.php.