CVE-2026-77929

Published: Set 18, 2026 Last Modified: Set 18, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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.

434

Unrestricted Upload of File with Dangerous Type

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: ASP.NET, PHP, Not Language-Specific
Technologies: Web Server, AI/ML
Likelihood of Exploit: Medium
View CWE Details
https://github.com/MacWarrior/clipbucket-v5/commit/61cce55a…
https://github.com/MacWarrior/clipbucket-v5/commit/61cce55ab26ef88fb782dfde47b4…
https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.…
https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23182
https://www.vulncheck.com/advisories/clipbucket-remote-code…
https://www.vulncheck.com/advisories/clipbucket-remote-code-execution-via-photo…