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CVE-2017-0881

N/A
Published: March 28, 2017 at 02:46 AM UTC
Updated: June 17, 2026 at 12:58 AM UTC
1 product affected across 1 vendorZulip Server

Using Zulip Server Versions 1.4.2 and below by N/A?

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Severity
N/A
Exploit prediction
EPSS 1%

Description

An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a private stream that should have required an invitation from an existing member to join. The issue affects all previously released versions of the Zulip server.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zulip Server· Zulip
95%
v < 1.4.3
Affected range stops below 1.4.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

VDB Entryx_refsource_BIDThird Party AdvisoryVendor Advisory
Source: [email protected]
http://www.securityfocus.com/bid/97159
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f
x_refsource_MISCPatchRelease NotesThird Party Advisory
Source: [email protected]
https://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ

CVSS

4MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200CWE-863

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