CVE-2026-28354

ClipBucket v5 has IDOR in Collection Item Management

State: Published
Severity: 5.7 Medium
Published: Feb 27, 2026
Updated: Feb 27, 2026
Reserved: Feb 26, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.7 Medium	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	GitHub_M

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key
CWE-863 Incorrect Authorization

Affected Products

Product	Versions
clipbucket-v5MacWarrior	< 5.5.3 - #59Affected

References

https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-6wf8-rw5f-c9mv

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