CVE-2023-2792

Ephemeral messages return private channel contents in permalink previews

Description

Mattermost fails to sanitize ephemeral error messages, allowing an attacker to obtain arbitrary message contents by a specially crafted /groupmsg command.

Remediation

Solution:

  • Update Mattermost to version 7.1.10, 7.8.5, 7.9.4, 7.10.1 or higher

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.21%
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-2023-2792?
CVE-2023-2792 has been scored as a medium severity vulnerability.
How to fix CVE-2023-2792?
To fix CVE-2023-2792: Update Mattermost to version 7.1.10, 7.8.5, 7.9.4, 7.10.1 or higher
Is CVE-2023-2792 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-2792 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-2023-2792?
CVE-2023-2792 affects Mattermost Mattermost.
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