What is CVE-2022-31095?

CVE-2022-31095 is a medium-severity vulnerability in Discourse Discourse-Chat, classified under Information Disclosure. CVSS score: 4.3/10. Published 2022-06-21.

How severe is CVE-2022-31095?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Discourse Discourse-Chat

CVE-2022-31095

discourse-chat is a chat plugin for the Discourse application. Versions prior to 0.4 are vulnerable to an exposure of sensitive information, where an attacker who knows the message ID for a channel they do not have access to can view that message using the chat message lookup endpoint, primarily affecting direct message channels. There are no known workarounds for this issue, and users are advised to update the plugin.

Vulnerability class: Information Disclosure

Published 2022-06-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Discourse Discourse-Chat — versions < 0.4

Weakness classification (CWE)

References

github.com/discourse/discourse-chat/security/advisories/GHSA-r979-jhp2-3f6h (Third Party Advisory)

Frequently asked questions

What is CVE-2022-31095?: CVE-2022-31095 is a medium-severity vulnerability in Discourse Discourse-Chat, classified under Information Disclosure. CVSS score: 4.3/10. Published 2022-06-21.
How severe is CVE-2022-31095?: Medium severity. CVSS v3 base score is 4.3 out of 10.