CVE-2025-10191: 
WordPress vulnerability analysis and mitigation

The Big Post Shipping for WooCommerce plugin for WordPress contains a Stored Cross-Site Scripting vulnerability (CVE-2025-10191) discovered in versions up to and including 2.1.1. The vulnerability was disclosed on September 29, 2025, and affects the plugin's 'wooboigpostshippingstatus' shortcode functionality (NVD, Wordfence).

The vulnerability stems from insufficient input sanitization and output escaping on user-supplied attributes in the 'wooboigpostshippingstatus' shortcode. It has been assigned a CVSS v3.1 Base Score of 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. The vulnerability is classified as CWE-79: Improper Neutralization of Input During Web Page Generation (NVD, Rapid7).

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 any user accesses the compromised page, potentially leading to unauthorized data access or manipulation of user sessions (NVD).

Users are advised to update to version 2.1.2 or later of the Big Post Shipping for WooCommerce plugin, which contains fixes for this security vulnerability (WordPress Plugin).