CVE-2017-0896

Name: CVE-2017-0896
Creator: NVD / NIST
Published: 2017-06-02T17:29:00.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.28%

Last modified Jun 17, 2026

CVE-2017-0896 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.28%

66.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Zulip	Zulip Server	1.3.0
Zulip	Zulip Server	1.3.1
Zulip	Zulip Server	1.3.2
Zulip	Zulip Server	1.3.3
Zulip	Zulip Server	1.3.4
Zulip	Zulip Server	1.3.6
Zulip	Zulip Server	1.3.7
Zulip	Zulip Server	1.3.8
Zulip	Zulip Server	1.3.9
Zulip	Zulip Server	1.3.10
Zulip	Zulip Server	1.3.11
Zulip	Zulip Server	1.3.12
Zulip	Zulip Server	1.3.13
Zulip	Zulip Server	1.4.0
Zulip	Zulip Server	1.4.1
Zulip	Zulip Server	1.4.2
Zulip	Zulip Server	1.4.3
Zulip	Zulip Server	1.5.0
Zulip	Zulip Server	1.5.1

References

https://github.com/zulip/zulip/commit/1f48fa27672170bba3b9a97384905bb04c18761bIssue Tracking, Patch
https://groups.google.com/forum/#%21msg/zulip-announce/sUYeJv-fFmg/2TU2TLmNAwAJ
https://hackerone.com/reports/224210Permissions Required
https://github.com/zulip/zulip/commit/1f48fa27672170bba3b9a97384905bb04c18761bIssue Tracking, Patch
https://groups.google.com/forum/#%21msg/zulip-announce/sUYeJv-fFmg/2TU2TLmNAwAJ
https://hackerone.com/reports/224210Permissions Required

Timeline

Published: Jun 2, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-0896?

How severe is CVE-2017-0896?

Severity scoring for CVE-2017-0896 is pending analysis. The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.

How do I fix CVE-2017-0896?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-0896?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST