CVE-2022-31017

Expression Always True vulnerability in Zulip Server

Description

Zulip is an open-source team collaboration tool. Versions 2.1.0 through and including 5.2 are vulnerable to a logic error. A stream configured as private with protected history, where new subscribers should not be allowed to see messages sent before they were subscribed, when edited causes the server to incorrectly send an API event that includes the edited message to all of the stream’s current subscribers. This API event is ignored by official clients, but can be observed by using a modified client or the browser’s developer tools. This bug will be fixed in Zulip Server 5.3. There are no known workarounds.

Category

2.0
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Third-Party Advisory github.com
Affected: zulip zulip
Published at:
Updated at:

References

Link Tags
https://github.com/zulip/zulip/security/advisories/GHSA-m5j3-jp59-6f3q third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-31017?
CVE-2022-31017 has been scored as a low severity vulnerability.
How to fix CVE-2022-31017?
To fix CVE-2022-31017, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-31017 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-31017 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-31017?
CVE-2022-31017 affects zulip zulip.
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