CVE-2026-21875
CriticalSummary
ClipBucket v5 versions 5.5.2-#187 and below allow an attacker to perform Blind SQL Injection through the add comment section within a channel. The obj_id parameter in the POST request to /actions/ajax.php is used within the user_exists function of the upload/includes/classes/user.class.php file as the $id parameter, and then used within the count function of the upload/includes/classes/db.class.php file. The $id parameter is concatenated into the query without validation or sanitization, and user-supplied input like 1' or 1=1-- - can trigger the injection. This issue does not have a fix at the time of publication.
Risk Assessment
An attacker can gain unauthorized access to database data, potentially leading to data confidentiality and integrity breaches.
Recommendation
Restrict access to the application, monitor traffic, and await an official patch from the vendor.
Original NVD description (English source)
ClipBucket v5 is an open source video sharing platform. Versions 5.5.2-#187 and below allow an attacker to perform Blind SQL Injection through the add comment section within a channel. When adding a comment within a channel, there is a POST request to the /actions/ajax.php endpoint. The obj_id parameter within the POST request to /actions/ajax.php is then used within the user_exists function of the upload/includes/classes/user.class. php file as the $id parameter. It is then used within the count function of the upload/includes/classes/db.class. php file. The $id parameter is concatenated into the query without validation or sanitization, and a user-supplied input like 1' or 1=1-- - can be used to trigger the injection. This issue does not have a fix at the time of publication.