CVE-2025-5813 is a medium-severity vulnerability affecting the Amazon Products to WooCommerce WordPress plugin developed by suhailahmad64. The vulnerability arises from a missing authorization check in the function wcta2w_get_amazon_product_callback() in all plugin versions up to and including 1.2.7. Specifically, this function lacks a capability check to verify whether the requester has the appropriate permissions to perform the action. As a result, unauthenticated attackers can exploit this flaw remotely over the network without any user interaction or prior authentication. The exploit allows attackers to create new products within the WooCommerce store by invoking this callback function. While the vulnerability does not directly impact confidentiality or availability, it compromises the integrity of the e-commerce data by enabling unauthorized insertion of potentially malicious or fraudulent product entries. The CVSS v3.1 base score is 5.3, reflecting a medium severity level, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N). The scope remains unchanged (S:U), and the impact is limited to integrity (I:L) without affecting confidentiality (C:N) or availability (A:N). No known exploits are currently reported in the wild, and no official patches or updates have been published at the time of analysis. This vulnerability is classified under CWE-862 (Missing Authorization). Given the plugin’s integration with WooCommerce stores, exploitation could lead to unauthorized product listings, potentially undermining store reputation, causing customer confusion, or facilitating fraudulent transactions.

For European organizations using the Amazon Products to WooCommerce plugin, this vulnerability poses a risk primarily to the integrity of their e-commerce platforms. Unauthorized product creation can lead to the insertion of counterfeit, malicious, or misleading product listings, which may damage brand reputation and customer trust. This could also result in financial losses due to fraudulent sales or chargebacks. Although the vulnerability does not directly compromise customer data confidentiality or site availability, the presence of unauthorized products can disrupt normal business operations and complicate inventory management. Small and medium-sized enterprises (SMEs) relying on WooCommerce for online sales are particularly vulnerable due to potentially limited security resources. Additionally, regulatory compliance under GDPR may be indirectly impacted if fraudulent activities lead to customer data misuse or loss of control over transactional data. The lack of authentication requirement and ease of exploitation increase the risk of automated attacks targeting vulnerable stores across Europe.

1. Immediate mitigation involves disabling or restricting access to the vulnerable callback function wcta2w_get_amazon_product_callback() via web application firewall (WAF) rules or server-level access controls to block unauthenticated requests targeting this endpoint. 2. Monitor web server logs for unusual POST or GET requests invoking this function or creating new products without proper authentication. 3. Implement strict role-based access controls (RBAC) in WordPress and WooCommerce to limit product creation permissions to trusted users only. 4. Employ security plugins that enforce capability checks and validate user permissions on all critical plugin callbacks. 5. Regularly audit installed plugins for updates and security advisories; although no patch is currently available, stay alert for vendor releases addressing this issue. 6. Consider temporarily disabling the Amazon Products to WooCommerce plugin if it is not essential to business operations until a secure version is released. 7. Educate site administrators on recognizing unauthorized product listings and reporting suspicious activity promptly. 8. Use intrusion detection systems (IDS) to detect anomalous behavior related to product creation endpoints. These targeted measures go beyond generic advice by focusing on access control enforcement, monitoring, and proactive plugin management specific to this vulnerability.