CVE-2023-3593

Server crash via a specially crafted markdown input

Description

Mattermost fails to properly validate markdown, allowing an attacker to crash the server via a specially crafted markdown input.

Remediation

Solution:

  • Update Mattermost to versions v7.8.7, v7.9.5, v7.10.3 or higher

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
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-2023-3593?
CVE-2023-3593 has been scored as a medium severity vulnerability.
How to fix CVE-2023-3593?
To fix CVE-2023-3593: Update Mattermost to versions v7.8.7, v7.9.5, v7.10.3 or higher
Is CVE-2023-3593 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-3593 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-2023-3593?
CVE-2023-3593 affects Mattermost Mattermost.
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