In Zulip Server before 1.7.1, on a server with multiple realms, a vulnerability in the invitation system lets an authorized user of one realm on the server create a user account on any other realm
Published Nov 27, 2017
8.8
HIGHCVSS 3.0
EPSS 1.09%
Description
In Zulip Server before 1.7.1, on a server with multiple realms, a vulnerability in the invitation system lets an authorized user of one realm on the server create a user account on any other realm.
Affected products
-
- Version before 1.7.1StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Zulip | Zulip Server | n/a |
|
- < 1.7.1
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:N/S:U/C:H/I:H/A:H
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 | 1.09% (0.01087) | 64.06th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.09% (0.01087) | 63.82th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00104) | 43.04th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.10% (0.00104) | 41.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00153) | 49.77th | 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)
- http://blog.zulip.org/2017/11/23/zulip-1-7-1-released/ x_refsource_CONFIRMVendor Advisory
- https://github.com/zulip/zulip/commit/960d736e55cbb9386a68e4ee45f80581fd2a4e32 x_refsource_CONFIRMPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://blog.zulip.org/2017/11/23/zulip-1-7-1-released/ | x_refsource_CONFIRMVendor Advisory | |
| https://github.com/zulip/zulip/commit/960d736e55cbb9386a68e4ee45f80581fd2a4e32 | x_refsource_CONFIRMPatchThird Party Advisory |
Change history (0)
No recorded changes yet.