CVE-2025-21622: ClipBucket V5 Avatar URL Path Traversal to Arbitrary File Delete
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 avatarurl 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 avatarurl) 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.
Affected Software
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Frequently Asked Questions
What is the severity of CVE-2025-21622?
CVE-2025-21622 is considered a medium severity vulnerability due to its potential for unauthorized access to user data.
How do I fix CVE-2025-21622?
To fix CVE-2025-21622, upgrade ClipBucket to version 5.5.2 or higher, which addresses the vulnerability.
What are the consequences of CVE-2025-21622?
The consequences of CVE-2025-21622 include the risk of unauthorized access to user avatars and potentially sensitive information.
Who is affected by CVE-2025-21622?
CVE-2025-21622 affects all users of ClipBucket versions up to and including 5.5.1.
Is CVE-2025-21622 actively exploited?
As of now, there are no known active exploits for CVE-2025-21622, but it is advisable to apply the recommended updates to mitigate any risks.