Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to
Published Jul 5, 2018
4.3
MEDIUMCVSS 3.1
EPSS 0.89%
Description
Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.
Affected products
-
- Version <13.0.3, <12.0.8StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Nextcloud | Nextcloud Server | n/a |
|
- < 12.0.8
- ≥ 13.0.0 · < 13.0.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.89% (0.00888) | 57.84th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.89% (0.00888) | 57.76th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.05% (0.00054) | 22.17th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.05% (0.00054) | 20.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00099) | 39.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- https://hackerone.com/reports/358339 x_refsource_MISCThird Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2018-002 x_refsource_CONFIRMBroken LinkVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://hackerone.com/reports/358339 | x_refsource_MISCThird Party Advisory | |
| https://nextcloud.com/security/advisory/?id=nc-sa-2018-002 | x_refsource_CONFIRMBroken LinkVendor Advisory |
Change history (0)
No recorded changes yet.