Vulnerability Details : CVE-2023-6547
Mattermost fails to validate team membership when a user attempts to access a playbook, allowing a user with permissions to a playbook but no permissions to the team the playbook is on to access and modify the playbook. This can happen if the user was once a member of the team, got permissions to the playbook and was then removed from the team.
Vulnerability category: BypassGain privilege
Products affected by CVE-2023-6547
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6547
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 23 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6547
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
2.8
|
2.5
|
NIST | |
3.7
|
LOW | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N |
1.2
|
2.5
|
Mattermost, Inc. |
CWE ids for CVE-2023-6547
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: responsibledisclosure@mattermost.com (Secondary)
References for CVE-2023-6547
-
https://mattermost.com/security-updates
Security Updates - Mattermost Open Source Collaboration PlatformIssue Tracking;Vendor Advisory
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