CVE-2025-13157 is an authorization bypass vulnerability classified under CWE-639 (Authorization Bypass Through User-Controlled Key) found in the QODE Wishlist for WooCommerce plugin for WordPress. The vulnerability exists in all versions up to and including 1.2.7 due to insufficient validation of a user-controlled key parameter within the 'qode_wishlist_for_woocommerce_wishlist_table_item_callback' function. This lack of validation allows unauthenticated attackers to manipulate the public view of arbitrary wishlists by updating wishlist items without proper authorization checks. The vulnerability is an Insecure Direct Object Reference (IDOR), meaning attackers can directly access and modify objects (wishlists) by supplying arbitrary keys. The CVSS 3.1 base score is 5.3 (medium severity), reflecting that the attack vector is network-based with low attack complexity, no privileges required, and no user interaction needed. The impact is limited to integrity, as attackers can alter wishlist data but cannot access confidential information or disrupt availability. No patches or official fixes have been published yet, and no known exploits have been observed in the wild. The vulnerability poses a risk primarily to e-commerce sites using this plugin, potentially undermining user trust and data integrity in wishlist features.

The primary impact of CVE-2025-13157 is the unauthorized modification of wishlist data on affected WooCommerce sites. Attackers can alter the public view of wishlists, potentially misleading users or corrupting user data. While this does not expose sensitive personal information or disrupt service availability, it compromises data integrity and can damage customer trust and brand reputation. For e-commerce businesses relying on wishlist functionality to drive sales and user engagement, this vulnerability could lead to customer dissatisfaction and potential financial loss. Additionally, attackers might use this flaw as part of a broader attack chain, such as social engineering or reputation damage campaigns. Since the vulnerability requires no authentication and can be exploited remotely, the attack surface is broad, affecting any site using the vulnerable plugin version. However, the absence of known exploits in the wild reduces immediate risk, though proactive mitigation is essential.

To mitigate CVE-2025-13157, organizations should implement strict validation and authorization checks on all user-controlled keys related to wishlist operations. Specifically, the plugin code should verify that any request to update wishlist data is authenticated and authorized for the specific user or session. Until an official patch is released, site administrators should consider disabling the wishlist functionality or the QODE Wishlist for WooCommerce plugin entirely if it is not critical. Monitoring web server logs for unusual requests targeting wishlist endpoints can help detect exploitation attempts. Employing a Web Application Firewall (WAF) with custom rules to block suspicious requests containing arbitrary keys may reduce risk. Additionally, site owners should keep WordPress core and all plugins updated and subscribe to vendor security advisories for timely patch deployment. Conducting a security review of all third-party plugins for similar authorization issues is recommended to prevent analogous vulnerabilities.