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.
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History
Fri, 18 Sep 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | ClipBucket < 5.5.3-#182 Remote Code Execution via Photo Upload Endpoint | |
| Weaknesses | CWE-434 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-18T15:27:53.729Z
Reserved: 2026-08-21T17:52:36.079Z
Link: CVE-2026-77929
No data.
Status : Received
Published: 2026-09-18T15:17:13.287
Modified: 2026-09-18T15:17:13.287
Link: CVE-2026-77929
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Weaknesses