CVE-2023-5193

System Role with manage posts permission can read posts of Direct Messages

Description

Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation.

Remediation

Solution:

  • Update Mattermost Server to versions 7.8.10, 8.0.2, 8.1.1 or higher

Category

4.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.13%
Vendor Advisory mattermost.com
Affected: Mattermost Mattermost
Published at:
Updated at:

References

Link Tags
https://mattermost.com/security-updates vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-5193?
CVE-2023-5193 has been scored as a medium severity vulnerability.
How to fix CVE-2023-5193?
To fix CVE-2023-5193: Update Mattermost Server to versions 7.8.10, 8.0.2, 8.1.1 or higher
Is CVE-2023-5193 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5193 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5193?
CVE-2023-5193 affects Mattermost Mattermost.
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