CVE-2023-49809

Todo plugin gets crashed and disabled by member

Description

Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. 

Remediation

Solution:

  • Update Mattermost Server to versions 8.1.6, 9.2.0 or higher

Category

4.3
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 issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-49809?
CVE-2023-49809 has been scored as a medium severity vulnerability.
How to fix CVE-2023-49809?
To fix CVE-2023-49809: Update Mattermost Server to versions 8.1.6, 9.2.0 or higher
Is CVE-2023-49809 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-49809 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-2023-49809?
CVE-2023-49809 affects Mattermost Mattermost.
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