Description
Zipline 4.0.0 before 4.8.0 contains an upload filter bypass vulnerability that allows users with upload access to store blocked file types due to extension format mismatch. The upload and partial handlers compare dotted, case-sensitive extensions against undotted disabledExtensions entries, letting authenticated or permitted unauthenticated folder uploaders bypass administrator restrictions.
Metrics
CVSS 3.1 4.3/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| diced | zipline | >= 4.0.0, < 4.8.0 |
References
- https://github.com/diced/zipline/blob/v4.7.0/src/server/routes/api/upload/index.ts#L170
- https://github.com/diced/zipline/blob/v4.7.0/src/server/routes/api/upload/partial.ts#L294
- https://github.com/diced/zipline/commit/dbc1fe502130a8ebd95fa04886efec01402e5b5f
- https://github.com/diced/zipline/releases/tag/v4.8.0
- https://github.com/diced/zipline/security/advisories/GHSA-wwrw-gq56-7wpj
- https://www.vulncheck.com/advisories/zipline-4.0.0-before-4.8.0-disabled-extensions-upload-filter-bypass-via-extension-format-mismatch
Timeline
- Published
- Nov 11, 2026
- Last modified
- Nov 11, 2026
- NVD status
- Received