CVE-2026-77929
ClipBucket < 5.5.3-#182 Remote Code Execution via Photo Upload Endpoint
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-434 |
| Vendor | macwarrior |
| Product | clipbucket-v5 |
| Published | Sep 18, 2026 |
| Last Updated | Sep 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
MacWarrior / clipbucket-v5
0 < 5.5.3-#182
References
Credits
Adam Nurudini (QwesiRED)