CVE-2024-8107 is a stored cross-site scripting (XSS) vulnerability identified in the Slider Revolution plugin for WordPress, a widely used tool for creating responsive sliders and interactive content. The vulnerability exists in all versions up to and including 6.7.18 due to improper neutralization of input during web page generation, specifically related to SVG file uploads. Authenticated users with Author-level permissions or higher can upload crafted SVG files containing malicious JavaScript. Because the plugin fails to adequately sanitize and escape these SVG inputs, the embedded scripts are stored and later executed in the context of any user who views the SVG content on the website. This can lead to session hijacking, defacement, or further exploitation of the affected WordPress site. Although exploitation requires authenticated access, the default WordPress roles restrict this to users with elevated privileges, typically administrators. However, if the Slider Revolution plugin permissions are extended to authors or other roles, the attack surface increases. The vulnerability has a CVSS 3.1 base score of 6.4, reflecting medium severity with network attack vector, low attack complexity, and no user interaction required. No public exploits have been reported yet, but the risk remains significant given the plugin's popularity and the potential impact on site integrity and user data confidentiality.

The primary impact of CVE-2024-8107 is the compromise of confidentiality and integrity of WordPress sites using the Slider Revolution plugin. Successful exploitation allows attackers to execute arbitrary JavaScript in the context of site visitors, potentially leading to session hijacking, theft of sensitive information, unauthorized actions on behalf of users, or site defacement. This can damage organizational reputation, lead to data breaches, and undermine user trust. Since the vulnerability requires authenticated access with Author-level permissions or higher, the risk is somewhat mitigated by WordPress role restrictions; however, many sites grant these privileges to multiple users or extend plugin capabilities, increasing exposure. The vulnerability does not impact availability directly but can be leveraged as part of broader attack chains. Organizations worldwide using Slider Revolution, especially those with multiple content authors or less restrictive access controls, face elevated risk. The lack of known active exploits reduces immediate threat but does not eliminate the potential for future attacks.

To mitigate CVE-2024-8107, organizations should immediately update the Slider Revolution plugin to a version where this vulnerability is patched once available. Until a patch is released, restrict upload permissions strictly to trusted administrators and avoid granting Author-level or higher roles the ability to upload SVG files via the plugin. Implement web application firewall (WAF) rules to detect and block suspicious SVG uploads or script payloads embedded within SVG files. Disable SVG file uploads entirely if not required. Conduct regular audits of user roles and permissions to ensure the principle of least privilege is enforced, minimizing the number of users who can upload content. Additionally, sanitize and validate all user-uploaded content at the application level and monitor logs for unusual activity related to SVG file uploads. Employ Content Security Policy (CSP) headers to restrict script execution sources, reducing the impact of potential XSS attacks. Finally, educate site administrators and content authors about the risks of uploading untrusted SVG files and the importance of applying security updates promptly.