Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that obtained user credentials to bypass the 2 Factor Authentication
Published Aug 12, 2018
8.8
HIGHCVSS 3.1
EPSS 1.23%
Description
Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that obtained user credentials to bypass the 2 Factor Authentication.
Affected products
-
- Version <12.0.3StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| HackerOne | Nextcloud Server | n/a |
|
- < 12.0.3
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:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:N/I:P/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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.23% (0.01234) | 67.93th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.23% (0.01234) | 67.68th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.11% (0.00109) | 44.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00114) | 43.24th | 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/248656 x_refsource_MISCIssue TrackingThird Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2018-007 x_refsource_CONFIRMBroken LinkVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://hackerone.com/reports/248656 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://nextcloud.com/security/advisory/?id=NC-SA-2018-007 | x_refsource_CONFIRMBroken LinkVendor Advisory |
Change history (0)
No recorded changes yet.