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CVE-2025-21622— ClipBucket V5 Avatar URL Path Traversal to Arbitrary File Delete

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 - 236版本及之前版本存在安全漏洞，该漏洞源于在提供的用户输入中没有检查路径遍历序列。

CVSS 7.5 · High EPSS 0.96% · P60

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2025-21622

Vulnerability Information
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Vulnerability Title
ClipBucket V5 Avatar URL Path Traversal to Arbitrary File Delete
Source: CVE Program / CVE List V5
Vulnerability Description
ClipBucket V5 provides open source video hosting with PHP. During the user avatar upload workflow, a user can choose to upload and change their avatar at any time. During deletion, ClipBucket checks for the avatar_url as a filepath within the avatars subdirectory. If the URL path exists within the avatars directory, ClipBucket will delete it. There is no check for path traversal sequences in the provided user input (stored in the DB as avatar_url) therefore the final $file variable could be tainted with path traversal sequences. This leads to file deletion outside of the intended scope of the avatars folder. This vulnerability is fixed in 5.5.1 - 237.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
ClipBucket 路径遍历漏洞
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 - 236版本及之前版本存在安全漏洞，该漏洞源于在提供的用户输入中没有检查路径遍历序列。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MacWarrior clipbucket-v5 < 5.5.1 - 237 -

II. Public POCs for CVE-2025-21622

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8643 chars
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III. Intelligence Information for CVE-2025-21622

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Patches & Fixes for CVE-2025-21622 (1)

Vendor Advisories for CVE-2025-21622 (1)

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

CVE-2025-21624 9.8 CRITICAL ClipBucket V5 Playlist Cover File Upload to Remote Code Execution
CVE-2025-21623 7.5 HIGH ClipBucket V5 Unauthenticated Template Directory Update to Denial-of-Service

IV. Related Vulnerabilities

Same product: clipbucket-v5
Same vendor: MacWarrior
Same weakness: CWE-22

V. Comments for CVE-2025-21622

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