CVE-2024-13681 is a vulnerability classified under CWE-20 (Improper Input Validation) found in the Uncode WordPress theme, versions up to and including 2.9.1.6. The flaw exists in the 'uncode_admin_get_oembed' function, which fails to properly validate input parameters. This improper validation enables unauthenticated attackers to perform arbitrary file read operations on the affected server. Specifically, attackers can craft requests that exploit this function to access sensitive files outside the intended scope, potentially including configuration files, credentials, or other sensitive data stored on the server. The vulnerability is remotely exploitable over the network without requiring any authentication or user interaction, increasing its risk profile. The CVSS v3.1 base score is 7.5, indicating a high severity due to the ease of exploitation (attack vector: network, attack complexity: low) and the high confidentiality impact, while integrity and availability remain unaffected. No patches or official fixes are currently linked, and no known exploits have been reported in the wild as of the publication date. The vulnerability affects all versions of the Uncode theme up to 2.9.1.6, which is widely used in WordPress-powered websites, making it a significant concern for website administrators and hosting providers.

The primary impact of CVE-2024-13681 is unauthorized disclosure of sensitive information through arbitrary file reads. This can lead to exposure of critical files such as wp-config.php, database credentials, private keys, or other sensitive data stored on the web server. Such information disclosure can facilitate further attacks, including privilege escalation, data breaches, or lateral movement within the network. Since exploitation requires no authentication or user interaction, attackers can easily scan and target vulnerable websites en masse. The vulnerability does not directly affect data integrity or availability but compromises confidentiality, which can have cascading effects on organizational security posture. Organizations relying on the Uncode theme for their WordPress sites face increased risk of data leakage, reputational damage, and potential compliance violations if sensitive data is exposed. The widespread use of WordPress and the popularity of the Uncode theme amplify the potential scale of impact globally.

1. Immediate mitigation involves updating the Uncode theme to a patched version once available from the vendor. Monitor official channels for patch releases. 2. In the absence of an official patch, implement web application firewall (WAF) rules to block or sanitize requests targeting the 'uncode_admin_get_oembed' function or suspicious query parameters that could exploit this vulnerability. 3. Restrict access to administrative endpoints and sensitive theme functions via IP whitelisting or authentication mechanisms to reduce exposure. 4. Conduct regular security audits and file integrity monitoring to detect unauthorized file access or modifications. 5. Limit the web server's file system permissions to prevent the web application from reading sensitive files unnecessarily. 6. Employ network segmentation and least privilege principles to contain potential breaches. 7. Educate site administrators about the risks and encourage prompt updates of WordPress themes and plugins to minimize exposure windows.