Vulnerability · Published Feb 27, 2026 · Assigned by GitHub_M
CVE-2026-28354ClipBucket v5 has IDOR in Collection Item Management
Medium 5.7
In plain English
A medium-severity authorization bypass via user-controlled key in clipbucket-v5 from MacWarrior. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Official description
ClipBucket v5 is an open source video sharing platform. Prior to version 5.5.3 #59, collection item operations are vulnerable to authorization flaws, allowing a normal authenticated user to modify another user’s collection items. This affects both add item (/actions/add_to_collection.php) due to missing authorization checks and delete item (/manage_collections.php?mode=manage_items...) due to a broken ownership check in removeItemFromCollection(). As a result, attackers can insert and remove items from collections they do not own. Version 5.5.3 #59 fixes the issue.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MacWarrior | clipbucket-v5 | < 5.5.3 - #59 |
Weakness: CWE-639, CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P