CVE-2025-21622
ClipBucket V5 Avatar URL Path Traversal to Arbitrary File Delete
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.
INFO
Published Date :
Jan. 7, 2025, 4:15 p.m.
Last Modified :
Sept. 5, 2025, 3:07 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update ClipBucket to version 5.5.1 - 237.
- Verify avatar deletion functionality.
Public PoC/Exploit Available at Github
CVE-2025-21622 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-21622.
| URL | Resource |
|---|---|
| https://github.com/MacWarrior/clipbucket-v5/commit/22329c4675e82c7c95e74024ba247f837ac9e00b | Patch |
| https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-5qpx-23rw-36gg | Exploit Vendor Advisory |
| https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-5qpx-23rw-36gg | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-21622 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-21622
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-21622 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-21622 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:oxygenz:clipbucket:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.5.1-237 Added Reference Type GitHub, Inc.: https://github.com/MacWarrior/clipbucket-v5/commit/22329c4675e82c7c95e74024ba247f837ac9e00b Types: Patch Added Reference Type CISA-ADP: https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-5qpx-23rw-36gg Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-5qpx-23rw-36gg Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 07, 2025
Action Type Old Value New Value Added Reference https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-5qpx-23rw-36gg -
New CVE Received by [email protected]
Jan. 07, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-22 Added Reference https://github.com/MacWarrior/clipbucket-v5/commit/22329c4675e82c7c95e74024ba247f837ac9e00b Added Reference https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-5qpx-23rw-36gg