CVE-2026-21875: ClipBucket v5 Vulnerable to Blind SQL Injection through Channel Comments
MacWarrior · clipbucket-v5
Affected: MacWarrior clipbucket-v5 · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 78% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- MacWarrior · clipbucket-v5<= 5.5.2-#187
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- ClipBucket v5 <= 5.5.2 - Unauthenticated Blind SQL Injection · nuclei template in projectdiscovery/nuclei-templates
- Weakness
- SQL Injection
- Vendor
- MacWarrior
- Published
- January 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-21875 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.