Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability
Published Mar 28, 2018
5.7
MEDIUMCVSS 3.0
EPSS 0.75%
Description
Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.
Affected products
-
- Version before 11.0.7 and 12.0.5StatusaffectedConstraints-
- 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 |
|
- < 11.0.7
- 12.0.5
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
AV:N/AC:M/Au:S/C:N/I:P/A:P
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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.75% (0.00752) | 53.32th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.75% (0.00752) | 53.49th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.05% (0.00054) | 22.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00054) | 20.65th | 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/297751 x_refsource_MISCThird Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2018-001 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://hackerone.com/reports/297751 | x_refsource_MISCThird Party Advisory | |
| https://nextcloud.com/security/advisory/?id=nc-sa-2018-001 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.