CVE-2019-15623
MEDIUMCVSS 5.3/10EPSS 1.92%
Last modified
CVE-2019-15623 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's domain and user IDs to the Nextcloud Lookup Server without any further data when the Lookup server is disabled.. EPSS estimates a 1.92% chance of exploitation in the next 30 days.
Description
Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's domain and user IDs to the Nextcloud Lookup Server without any further data when the Lookup server is disabled.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Nextcloud | Nextcloud Server | < 14.0.13 | — |
| Nextcloud | Nextcloud Server | >= 15.0.0, < 15.0.9 | — |
| Nextcloud | Nextcloud Server | >= 16.0.0, < 16.0.2 | — |
| Opensuse | Backports Sle | 15.0 | Sp1 |
| Suse | Package Hub | All versions | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.htmlThird Party Advisory
- https://hackerone.com/reports/508490Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2019-016Third Party Advisory, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.htmlThird Party Advisory
- https://hackerone.com/reports/508490Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2019-016Third Party Advisory, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-15623?
Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's domain and user IDs to the Nextcloud Lookup Server without any further data when the Lookup server is disabled.
How severe is CVE-2019-15623?
CVE-2019-15623 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.
How do I fix CVE-2019-15623?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-15623?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST