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.
References (2)
Core 2
Core References
Patch, Third Party Advisory
https://github.com/discourse/discourse-chat/commit/25737733af48e5b9fa60b0561d7fde14bea13cce
Third Party Advisory
https://github.com/discourse/discourse-chat/security/advisories/GHSA-qp62-8m3c-9jgj
Scores
CVSS v3
4.3
EPSS
0.0022
EPSS Percentile
44.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (1)
discourse/discourse-chat
< 0.9
Published
Oct 06, 2022
Tracked Since
Feb 18, 2026