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CVE-2025-21624— ClipBucket V5 Playlist Cover File Upload to Remote Code Execution

Quick assessment

Affected
MacWarrior clipbucket-v5
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ClipBucket是MacWarrior开源的一个开源且可免费下载的 PHP 脚本。用于共享视频网站。 ClipBucket V5 5.5.1 - 238及之前版本存在安全漏洞，该漏洞源于文件上传功能中存在不正确检查，从而允许在服务器上存储和执行webshell或其他恶意文件。

CVSS 9.8 · Critical EPSS 1.20% · P67
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I. Basic Information for CVE-2025-21624

Vulnerability Information
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Vulnerability Title
ClipBucket V5 Playlist Cover File Upload to Remote Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
ClipBucket V5 provides open source video hosting with PHP. Prior to 5.5.1 - 239, a file upload vulnerability exists in the Manage Playlist functionality of the application, specifically surrounding the uploading of playlist cover images. Without proper checks, an attacker can upload a PHP script file instead of an image file, thus allowing a webshell or other malicious files to be stored and executed on the server. This attack vector exists in both the admin area and low-level user area. This vulnerability is fixed in 5.5.1 - 239.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
ClipBucket 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ClipBucket是MacWarrior开源的一个开源且可免费下载的 PHP 脚本。用于共享视频网站。 ClipBucket V5 5.5.1 - 238及之前版本存在安全漏洞，该漏洞源于文件上传功能中存在不正确检查，从而允许在服务器上存储和执行webshell或其他恶意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
MacWarrior clipbucket-v5 < 5.5.1 - 239 -

II. Public POCs for CVE-2025-21624

# POC Description Source Link Shenlong Link
1 PoC, and documentation of deployment of a vulnerable instance of ClipBucket-v5 for demonstration of CVE-2025-21624. https://github.com/shreyas-malhotra/CVE-2025-21624 POC Details
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Qwen3.6-35B-A3B · 7437 chars
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III. Intelligence Information for CVE-2025-21624

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Patches & Fixes for CVE-2025-21624 (1)

Vendor Advisories for CVE-2025-21624 (1)

Same Patch Batch · MacWarrior · 2025-01-07 · 3 CVEs total

CVE-2025-21623 7.5 HIGH ClipBucket V5 Unauthenticated Template Directory Update to Denial-of-Service
CVE-2025-21622 7.5 HIGH ClipBucket V5 Avatar URL Path Traversal to Arbitrary File Delete

IV. Related Vulnerabilities

Same product: clipbucket-v5
Same vendor: MacWarrior
Same weakness: CWE-434

V. Comments for CVE-2025-21624

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