CVE-2024-12453: 
WordPress vulnerability analysis and mitigation

The Uptodown APK Download Widget plugin for WordPress contains a Stored Cross-Site Scripting vulnerability (CVE-2024-12453) via the plugin's 'utd-widget' shortcode in versions up to and including 0.1.2. The vulnerability exists due to insufficient input sanitization and output escaping on user-supplied attributes (Wordfence).

The vulnerability is classified as a Cross-Site Scripting (CWE-79) issue with a CVSS v3.1 Base Score of 6.4 MEDIUM (Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N). The security flaw stems from improper neutralization of input during web page generation, specifically in the handling of user-supplied attributes in the 'utd-widget' shortcode (NVD).

When exploited, this vulnerability allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts into pages. These malicious scripts will execute whenever a user accesses an injected page, potentially compromising the security of site visitors (NVD).

Users should update the Uptodown APK Download Widget plugin to a version newer than 0.1.2 when available. Until then, site administrators should carefully review and limit contributor-level access to trusted users (WordPress Plugin).