VIR Vulnerability Intelligence Relay

CVE-2017-0910

high
Published 2017-11-27 · Modified 2026-05-13
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2
4.0
VIR risk
8.8

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.

Predictions

Exploit likelihood
92%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: support@hackerone.com — https://github.com/zulip/zulip/commit/960d736e55cbb9386a68e4ee45f80581fd2a4e32

vendor Authored 2026-05-27

Vendor advisory: support@hackerone.com — http://blog.zulip.org/2017/11/23/zulip-1-7-1-released/

Application impact
VendorProductVersionsFixed
zulipzulip_server{"endExcluding":"1.7.1"}1.7.1

References

CWEs

CWE-863 CWE-287

Verify integrity in audit chain (admin only). AS-IS.