CVE-2024-3991: 
WordPress vulnerability analysis and mitigation

The ShopLentor – WooCommerce Builder for Elementor & Gutenberg +12 Modules – All in One Solution (formerly WooLentor) plugin for WordPress contains a Stored Cross-Site Scripting vulnerability (CVE-2024-3991) discovered in May 2024. The vulnerability affects versions up to and including 2.8.7, specifically in the _id attribute within the Horizontal Product Filter functionality (Wordfence).

The vulnerability stems from insufficient input sanitization and output escaping on user-supplied attributes in the Horizontal Product Filter component. The CVSS v3.1 score is 6.4 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N, indicating a network-accessible vulnerability requiring low attack complexity and low privileges (Wordfence).

When exploited, this vulnerability allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into pages. These malicious scripts will execute whenever a user accesses the compromised page (Wordfence).

The vulnerability requires an authenticated user with at least contributor-level privileges to exploit. The attacker must have the ability to modify content within the Horizontal Product Filter component (Wordfence).

A fix has been implemented in the plugin's codebase as evidenced by the changelog (WordPress Plugin). Users are advised to update their ShopLentor plugin to the latest version to mitigate this vulnerability.