CVE-2022-31168

Name: CVE-2022-31168
Creator: NVD / NIST
Published: 2022-07-22T13:15:08.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2022-31168 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Zulip is an open source team chat tool. Due to an incorrect authorization check in Zulip Server 5.4 and earlier, a member of an organization could craft an API call that grants organization administrator privileges to one of their bots. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

Zulip is an open source team chat tool. Due to an incorrect authorization check in Zulip Server 5.4 and earlier, a member of an organization could craft an API call that grants organization administrator privileges to one of their bots. The vulnerability is fixed in Zulip Server 5.5. Members who don’t own any bots, and lack permission to create them, can’t exploit the vulnerability. As a workaround for the vulnerability, an organization administrator can restrict the `Who can create bots` permission to administrators only, and change the ownership of existing bots.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.62%

45.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Zulip	Zulip	< 5.5

References

https://github.com/zulip/zulip/commit/751b2a03e565e9eb02ffe923b7c24ac73d604034Patch, Third Party Advisory
https://github.com/zulip/zulip/releases/tag/5.5Release Notes, Third Party Advisory
https://github.com/zulip/zulip/security/advisories/GHSA-c3cp-ggg5-9xw5Third Party Advisory
https://github.com/zulip/zulip/commit/751b2a03e565e9eb02ffe923b7c24ac73d604034Patch, Third Party Advisory
https://github.com/zulip/zulip/releases/tag/5.5Release Notes, Third Party Advisory
https://github.com/zulip/zulip/security/advisories/GHSA-c3cp-ggg5-9xw5Third Party Advisory

Timeline

Published: Jul 22, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31168?

How severe is CVE-2022-31168?

CVE-2022-31168 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31168?

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-2022-31168?

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

Scan your code now

Source: NVD / NIST