Vulnerability details

The payever – WooCommerce Gateway plugin for WordPress is vulnerable to arbitrary file upload leading to remote code execution in various versions up to, and including, 4.8.0. Three WooCommerce-API callbacks (payever_set_sandbox_api_keys, payever_toggle_subscription, payever_synchronization_incoming) are registered with no authentication, capability check, or nonce, and the upload_image() routine writes a remotely fetched file to the public uploads directory using an attacker-controlled basename() BEFORE validating the file type. This makes it possible for unauthenticated attackers to write an executable PHP file and achieve remote code execution. NOTE: the token-recovery leg of the full chain depends on the plugin's outbound validateToken() call to Payever's service; the unauthenticated hard-coded-credential identity overwrite (CWE-862/CWE-798) is independently exploitable.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/03412063-d73a-4c5c-8dc6-3e76a5d975a5?source=cve
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php?rev=3647773#L22
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php?rev=3647773#L116
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/woocommerce-payever-gateway.php?rev=3647773#L145
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/logger/class-payever-logger.php?rev=3647773#L18
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-log-manager.php?rev=3647773#L35
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/management/class-payever-subscription-manager.php?rev=3647773#L79
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php?rev=3647773#L683
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/management/class-payever-import-manager.php?rev=3647773#L21
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/actions/class-payever-action-update-product.php?rev=3647773#L448
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/actions/class-payever-action-update-product.php?rev=3647773#L547
• https://plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/vendor/payever/core-sdk-php/lib/Payever/Core/Http/Client/CurlClient.php?rev=3647773#L258
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3761918%40payever-woocommerce-gateway&new=3761918%40payever-woocommerce-gateway