CVE-2022-39279

Discourse-chat plugin susceptible to XSS in channel name and description

Description

discourse-chat is a plugin for the Discourse message board which adds chat functionality. In versions prior to 0.9 some places render a chat channel's name and description in an unsafe way, allowing staff members to cause an cross site scripting (XSS) attack by inserting unsafe HTML into them. Version 0.9 has addressed this issue. Users are advised to upgrade. There are no known workarounds for this issue.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: discourse discourse-chat
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse-chat/security/advisories/GHSA-qp62-8m3c-9jgj third party advisory
https://github.com/discourse/discourse-chat/commit/25737733af48e5b9fa60b0561d7fde14bea13cce third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-39279?
CVE-2022-39279 has been scored as a medium severity vulnerability.
How to fix CVE-2022-39279?
To fix CVE-2022-39279, 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-2022-39279 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39279 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-2022-39279?
CVE-2022-39279 affects discourse discourse-chat.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.