CVE-2019-15621

Description

Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory nextcloud.com
Affected: n/a Nextcloud Server
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/619484 permissions required
https://nextcloud.com/security/advisory/?id=NC-SA-2020-012 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-15621?
CVE-2019-15621 has been scored as a medium severity vulnerability.
How to fix CVE-2019-15621?
To fix CVE-2019-15621, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-15621 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-15621 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-15621?
CVE-2019-15621 affects n/a Nextcloud Server.
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