Improper input validation in Nextcloud Server
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-345.
Summary
A bug in Nextcloud Server 17.0.1 causes the workflow rules to depend their behaviour on the file extension when checking file mimetypes.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Nextcloud Server | 17.0.2 | — | No fix listed | CNA |
- Nextcloud Server Vendor— Affected 17.0.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Nextcloud Server — openSUSE-SU-2020:0220
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-11720 Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to…Priority LOW 31
- TI-2019-11722 Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's…Priority LOW 28
- TI-2020-06536 Server-side request forgery in Nextcloud ServerPriority LOW 25
- Advisory ·
Nextcloud Server — openSUSE-SU-2020:0229
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-11720 Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to…Priority LOW 31
- TI-2019-11722 Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's…Priority LOW 28
- TI-2020-06536 Server-side request forgery in Nextcloud ServerPriority LOW 25
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2019-15613
- 2026-10-03 Alias added: GHSA-rc6x-59rr-4g8r
References
Sources
- CVE-2019-15613 · CVE Program
- CVE-2019-15613 · NVD
- FIRST EPSS
- GHSA-rc6x-59rr-4g8r · GitHub Advisory Database · CC BY 4.0
- CVE-2019-15613 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences