XSS in Discourse Discourse-Chat
CVE-2022-36057
Discourse-Chat is an asynchronous messaging plugin for the Discourse open-source discussion platform. Users of Discourse Chat can be affected by admin users inserting HTML into chat titles and descriptions, causing a Cross-Site Scripting (XSS) attack. Version 0.9 contains a patch for this issue.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Discourse Discourse-Chat — versions < 0.9
Weakness classification (CWE)
References
- github.com/discourse/discourse-chat/security/advisories/GHSA-3vf2-wrjx-p6xj (Third Party Advisory)
- github.com/discourse/discourse-chat/pull/1205 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-36057?
- CVE-2022-36057 is a medium-severity vulnerability in Discourse Discourse-Chat, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-09-06.
- How severe is CVE-2022-36057?
- Medium severity. CVSS v3 base score is 5.4 out of 10.