CVE-2026-28354
Authorization Bypass in ClipBucket v5 Allows Collection Item Manipulation
Publication date: 2026-02-27
Last updated on: 2026-03-03
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| oxygenz | clipbucket | From 5.3 (inc) to 5.5.3-59 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-863 | The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
| CWE-639 | The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability affects ClipBucket v5, an open source video sharing platform, prior to version 5.5.3 #59. It involves authorization flaws in collection item operations, specifically in adding and deleting items from collections. Normal authenticated users can exploit missing authorization checks and broken ownership verification to modify collection items that belong to other users. This means attackers can insert or remove items from collections they do not own.
How can this vulnerability impact me? :
The vulnerability allows an attacker with normal user privileges to modify other users' collection items without proper authorization. This can lead to unauthorized changes in collections, such as adding unwanted content or deleting legitimate items, potentially disrupting user experience, damaging trust, or causing data integrity issues within the platform.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
The vulnerability in ClipBucket v5 prior to version 5.5.3 #59 allows unauthorized modification of collection items by authenticated users due to missing authorization and broken ownership checks.
To mitigate this vulnerability immediately, upgrade ClipBucket to version 5.5.3 #59 or later, where the issue has been fixed.