CVE-2019-15617
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when...
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.
- Record
CVE-2019-15617- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - CVSS 2.0
- 5.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
CVE List No score
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.
- Record
CVE-2019-15617- Weakness
- CWE-287
- Updated
- 2026-11-02
EUVDEUVD-2019-6574 No score
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.
- Record
EUVD-2019-6574- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mr7g-84h2-qmm4 No score
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when...
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.
- Record
GHSA-mr7g-84h2-qmm4- Updated
- 2026-11-02
OSV
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.
- Record
CVE-2019-15617- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-15617 is a medium vulnerability (CVSS 5.4) in Hackerone Nextcloud Server, published February 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.61%, the 49th percentile. No source names a fixed version.