The vulnerability identified as CVE-2025-62424 affects the ClipBucket video-sharing platform, versions prior to 5.5.2 - #147. It is a path traversal flaw (CWE-22) located in the /admin_area/template_editor.php endpoint. The root cause is inadequate validation of the 'folder' parameter used for loading template files. An authenticated administrator can insert path traversal sequences (e.g., ../) into this parameter to escape the intended template directory and access arbitrary files on the server filesystem. This can be exploited to read sensitive files such as /etc/passwd, which contains user account information, or to write to files that the web server or application has permission to modify. Such unauthorized file access can lead to sensitive information disclosure, unauthorized modification of application or system files, and potentially full server compromise if critical files or scripts are altered. The vulnerability does not require user interaction but does require administrator-level authentication, limiting exploitation to insiders or attackers who have compromised admin credentials. The CVSS v3.1 base score is 6.7, reflecting network attack vector, low attack complexity, high privileges required, no user interaction, and high impact on confidentiality and integrity with low impact on availability. No known exploits are reported in the wild as of the publication date. The vendor fixed this issue in ClipBucket version 5.5.2 - #147 by improving input validation to restrict path traversal attempts.

For European organizations using ClipBucket versions prior to 5.5.2 - #147, this vulnerability poses a significant risk of sensitive data exposure and system compromise. Attackers with administrator credentials can read confidential files, potentially exposing user data or system configurations, and modify files to implant backdoors or disrupt service. This can lead to loss of data integrity, unauthorized access, and potential regulatory non-compliance under GDPR if personal data is exposed. The impact is particularly critical for media companies, educational institutions, or any organization relying on ClipBucket for video content management. The requirement for administrator privileges reduces the risk of external exploitation but increases the threat from insider attacks or credential theft. The vulnerability could also be leveraged as a stepping stone for lateral movement within an organization's network.

European organizations should immediately upgrade ClipBucket to version 5.5.2 - #147 or later, where the vulnerability is patched. Until upgrade is possible, restrict administrative access to trusted personnel and enforce strong authentication mechanisms such as multi-factor authentication to reduce the risk of credential compromise. Conduct audits of administrator accounts and monitor for unusual file access or modification activities, especially around the /admin_area/template_editor.php endpoint. Implement web application firewalls (WAFs) with custom rules to detect and block path traversal patterns in requests targeting the vulnerable endpoint. Regularly review file system permissions to ensure the web server and application have the minimum necessary write access. Additionally, conduct security awareness training for administrators to recognize phishing or social engineering attempts that could lead to credential theft. Finally, maintain comprehensive logging and incident response plans to quickly detect and respond to any exploitation attempts.