CVE-2023-2783

App Framework does not checks for the secret provided in the incoming webhook request

Description

Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.

Remediation

Solution:

  • Update Mattermost Server to versions Versions 7.8.5, 7.9.4, 7.10.1 or higher.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory mattermost.com
Affected: Mattermost Mattermost App Framework
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2023-2783?
CVE-2023-2783 has been scored as a medium severity vulnerability.
How to fix CVE-2023-2783?
To fix CVE-2023-2783: Update Mattermost Server to versions Versions 7.8.5, 7.9.4, 7.10.1 or higher.
Is CVE-2023-2783 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-2783 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-2023-2783?
CVE-2023-2783 affects Mattermost Mattermost App Framework.
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