Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oxygenz | Clipbucket | >= 5.3, < 5.5.2-191 |
Related Weaknesses (CWE)
References
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-crpv-fmc4-jExploitVendor Advisory
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-crpv-fmc4-jExploitVendor Advisory
FAQ
What is CVE-2026-21875?
CVE-2026-21875 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 c...
How severe is CVE-2026-21875?
CVE-2026-21875 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-21875?
Check the references section above for vendor advisories and patch information. Affected products include: Oxygenz Clipbucket.