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No exploitation reportedFix available

CVE-2019-15623

No exploitation reported by the sources we read.

  • Published2020-02-04
  • Fixed in16.0.2 · 15.0.9 · 14.0.13
  • WeaknessCWE-359

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2020-02-0420:15CVE publishedNVD

Versions per branch

NVD
Nextcloud nextcloud server
BranchAffectedFixed in
16.0≥ 16.0.0, < 16.0.216.0.2
15.0≥ 15.0.0, < 15.0.915.0.9
14.0< 14.0.1314.0.13
Opensuse backports sle
BranchAffectedFixed in
15.0= 15.0no fix published
Suse package hub
BranchAffectedFixed in
—all versionsno fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • nextcloudSUSE:Package Hub 15 SP1all versions · fixed in 15.0.14-bp151.3.3.1
  • nextcloudSUSE:Package Hub 15 SP1all versions · fixed in 15.0.14-bp151.3.6.1
  • nextcloudSUSE:Package Hub 15all versions · fixed in 15.0.14-bp151.3.3.1
  • nextcloudSUSE:Package Hub 12all versions · fixed in 15.0.14-bp151.3.3.1
  • nextcloudopenSUSE:Leap 15.1all versions · fixed in 15.0.14-bp151.3.3.1

Vendor advisories

  • CVE-2019-15623 Red Hat Product Security

    nextcloud: Several CVEs fixed in nextcloud 15, 16 and 17

Full record on NVD

Fix

  1. Update Nextcloud nextcloud server to 16.0.2 · 15.0.9 · 14.0.13

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Published
2020-02-04
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-7vfj-8rgw-2c3q

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.

Is CVE-2019-15623 actively exploited?

Active exploitation of CVE-2019-15623 has not been confirmed. Its EPSS score was 1.9% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-15623?

CVE-2019-15623 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

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Sources for this record