CVE-2024-24816: 
JavaScript vulnerability analysis and mitigation

A cross-site scripting (XSS) vulnerability was discovered in CKEditor4, an open-source WYSIWYG HTML editor, affecting versions prior to 4.24.0-lts. The vulnerability was found in samples that use the preview feature, specifically in samples/old//*.html and plugins/[plugin name]/samples//*.html files. The issue was discovered in February 2024 and affects all integrators that use these samples in production code (GitHub Advisory).

The vulnerability is classified as a cross-site scripting (XSS) issue (CWE-79) with a CVSS v3.1 base score of 6.1 (Medium). The attack vector is network-based, with low attack complexity and no privileges required, though it does require user interaction. The vulnerability has a changed scope with low impacts on both confidentiality and integrity, but no impact on availability (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) (NVD).

The vulnerability allows an attacker to execute JavaScript code by abusing the misconfigured preview feature. It affects all users using CKEditor 4 versions below 4.24.0-lts who have implemented the affected samples in a production environment (GitHub Advisory).

The vulnerability has been patched in version 4.24.0-lts. Users are advised to upgrade to this version or later to mitigate the risk. For those unable to upgrade immediately, it is recommended to avoid using the affected sample code in production environments (GitHub Advisory).