MacWarrior ClipBucket up to 5.5.3-#181 fileupload.class.php FileUpload::manageFile unrestricted upload

Summaryinfo

A vulnerability was found in MacWarrior ClipBucket up to 5.5.3-#181. It has been declared as critical. Affected by this issue is the function FileUpload::manageFile of the file fileupload.class.php. Executing a manipulation can lead to unrestricted upload. This vulnerability appears as CVE-2026-77929. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in MacWarrior ClipBucket up to 5.5.3-#181. It has been declared as critical. This vulnerability affects the function FileUpload::manageFile of the file fileupload.class.php. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with valid image magic bytes through the photo upload endpoint. The FileUpload::manageFile() function in fileupload.class.php fails to update the file extension after MIME validation, allowing an attacker-controlled .php extension to persist on disk and execute as PHP via PHP-FPM when the uploaded file is retrieved.

The advisory is available at github.com. This vulnerability was named CVE-2026-77929 since 08/21/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

By approaching the search of inurl:fileupload.class.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.5.3-#182 eliminates this vulnerability.

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Productinfo

Vendor

• MacWarrior

Name

• ClipBucket

Version

• 5.5.3-#181

CPE 2.3info

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CPE 2.2info

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