CVE-2017-0896 json
Zulip Server 1.5.1 and below suffer from an error in the implementation of the invite_by_admins_only setting in the Zulip group chat applic…
published 2017-06-02 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-1249
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
Zulip Server 1.5.1 and below suffer from an error in the implementation of the invite_by_admins_only setting in the Zulip group chat application server that allowed an authenticated user to invite other users to join a Zulip organization even if the organization was configured to prevent this.
Patch / fix
Exploit prediction
1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
Affected products
- Zulip Zulip Server
Classification
References
-
github.com
/zulip/zulip/commit/1f48fa27672170bba3b9a97384905bb04c18761b
issue-tracking, patch
-
groups.google.com
/forum/#%21msg/zulip-announce/sUYeJv-fFmg/2TU2TLmNAwAJ
mailing-list
-
hackerone.com
/reports/224210
permissions-required
Sources
- CVE List CVE-2017-0896
- NVD CVE-2017-0896
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.