SQL Injection Vulnerability in ClipBucket 5.x
CVE-2026-21875

9.8CRITICAL

Key Information:

Vendor

Macwarrior

Status
Clipbucket-v5
Vendor
CVE Published:
7 January 2026

What is CVE-2026-21875?

ClipBucket is an open-source video sharing platform, and a vulnerability has been discovered in versions 5.5.2-#187 and earlier. This vulnerability allows attackers to execute Blind SQL Injection through the comment section of a channel. When a user submits a comment, a POST request is sent to the /actions/ajax.php endpoint. The obj_id parameter from this request is misused in the backend processing without sufficient validation or sanitization, making it possible for malicious inputs, such as '1' or '1=1--', to be included in SQL queries. This flaw could compromise the integrity of the application's database and potentially expose sensitive user information. Currently, no fix is available for this issue.

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Affected Version(s)

clipbucket-v5 <= 5.5.2-#187

References

https://github.com/MacWarrior/clipbucket-v5/security/advi...
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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