Vulnerability Details : CVE-2023-1775
When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.
Vulnerability category: Information leak
Products affected by CVE-2023-1775
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:7.7.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-1775
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-1775
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
Mattermost, Inc. |
CWE ids for CVE-2023-1775
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: responsibledisclosure@mattermost.com (Secondary)
-
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-1775
-
https://mattermost.com/security-updates/
Security Updates - Mattermost - Open Source, On-Prem or Private Cloud MessagingVendor Advisory
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