CVE-2024-12461: 
WordPress vulnerability analysis and mitigation

The WP-Revive Adserver plugin for WordPress contains a Stored Cross-Site Scripting vulnerability (CVE-2024-12461) that affects all versions up to and including 2.2.1. The vulnerability was discovered and disclosed on December 11, 2024. The issue exists in the plugin's 'wprevive_async' shortcode functionality due to insufficient input sanitization and output escaping on user-supplied attributes (NVD).

The vulnerability 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 security flaw is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) and stems from inadequate sanitization of user input in the plugin's shortcode implementation (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, potentially leading to theft of sensitive information or manipulation of page content (NVD).

As of December 10, 2024, the plugin has been closed and is no longer available for download from the WordPress plugin repository due to this security issue. Users are advised to remove the plugin from their WordPress installations (WordPress).