CVE-2026-21875: 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…

PriorityP355critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.34%

26.1th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
macwarrior	clipbucket-v5	<= 5.5.2-#187	—
oxygenz	clipbucket	>= 5.3 < 5.5.2-191	5.5.2-191

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