Vulnerability in Zulip

CVE-2016-4427

In zulip before 1.3.12, deactivated users could access messages if SSO was enabled.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2016-4427: held from 0.007 to 0.008.

EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000

Affected products

  • Zulip
  • Zulip — versions zulip 1.3.12

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-4427?
CVE-2016-4427 is a high-severity vulnerability in Zulip, classified under Improper Access Control. CVSS score: 7.5/10. Published 2022-07-28.
How severe is CVE-2016-4427?
High severity. CVSS v3 base score is 7.5 out of 10.