Exposure of Sensitive Information in discourse-chat
Priority LOW 30CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200 and CWE-862.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00584 48th percentileScored 2026-11-07
Fix Fixed discourse-chat (discourse): 0.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA discourse-chat (discourse) Fixed in 0.4
Timeline
- 2026-10-02 Threatist record created from CVE-2022-31095
References
More Discourse-chat vulnerabilities
- TI-2022-18655 Discourse-chat plugin susceptible to XSS in channel name and description CVSS 3.1MEDIUM 5.4
- TI-2022-16480 Discourse-Chat Cross-Site Scripting issue for channel names and descriptions CVSS 3.1MEDIUM 5.4
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences