Security readout for executives and security teams
Plain-English summary
ClipBucket v5 before 5.5.3 #59 lets a logged-in user add or remove videos/items in collections they do not own. This is an authorization failure, not a server takeover issue. The main business risk is unauthorized content manipulation, damaged user trust, and moderation or integrity problems on affected video-sharing sites.
Executive priority
Prioritize patching for public or multi-user ClipBucket sites. The issue affects content integrity and user trust, but available sources do not indicate full system compromise or confirmed active exploitation.
Technical view
CVE-2026-28354 is an IDOR/broken authorization issue in ClipBucket v5 collection item management. The advisory cites missing authorization checks in add-to-collection handling and a broken ownership check in removeItemFromCollection(). Attackers need a normal authenticated account and can modify collection contents owned by other users. Fixed in version 5.5.3 #59.
Likely exposure
Sites running MacWarrior clipbucket-v5 before 5.5.3 #59 are potentially exposed, especially where public user registration or many low-privilege accounts exist.
Exploitation context
Network-accessible exploitation with low privileges and no user interaction is indicated by the CVSS vector. Sources do not show CISA KEV listing or active exploitation evidence.
Researcher notes
Mapped weaknesses are CWE-639 and CWE-863. The affected surface is collection item add/delete authorization. Evidence is limited to the CVE record and GitHub advisory; no independent exploitation reports are included in the provided sources.
Mitigation direction
- Upgrade ClipBucket v5 to version 5.5.3 #59 or later.
- Review vendor advisory and release notes for any additional required changes.
- Restrict or monitor account creation if immediate upgrade is delayed.
- Audit recent collection item changes for suspicious cross-user modifications.
Validation and detection
- Identify all ClipBucket v5 deployments and installed versions.
- Confirm production is running 5.5.3 #59 or later.
- Review application logs for unusual collection add or remove activity.
- Verify authorization tests cover cross-user collection item operations.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-639: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-863: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-28354 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.7 (4.0)
- Known Exploited
- No
- Published
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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.7MediumVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-6wf8-rw5f-c9mvCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Authorization Bypass Through User-Controlled Key
Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Incorrect Authorization
Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.