VDB
CVE-2019-15621
CVE-2019-15621
PUBLISHED
CVSS 6.5 MEDIUM
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.
EPSS 0.12% · 29.8th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS Score
0.12%
29.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | Nextcloud Server | 16.0.2 |
| nextcloud | nextcloud_server | 0, 15.0.0, 16.0.0 |
Exploit Intelligence
- https://hackerone.com/reports/619484 (nist-nvd)
- User with read-only access to a share can gain write access to sub-folders in the share (hackerone)
- User with read-only access to a share can gain write access to sub-folders in the share (hackerone)
- User with read-only access to a share can gain write access to sub-folders in the share (hackerone)
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-012 (circl)
- openSUSE-SU-2020:0220 (circl)
- openSUSE-SU-2020:0229 (circl)
Timeline
- CVE Published
- Mar 1, 2020 PoC Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
References
- https://hackerone.com/reports/619484 url
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-012 url
- openSUSE-SU-2020:0220 vendor-advisory
- openSUSE-SU-2020:0229 vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-15621 advisory