CVE-2024-39836

Munged email address used for password resets and notifications

Description

Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to ensure that remote/synthetic users cannot create sessions or reset passwords, which allows the munged email addresses, created by shared channels, to be used to receive email notifications and to reset passwords, when they are valid, functional emails.

Remediation

Solution:

  • Update Mattermost to versions 9.11.0, 9.9.2, 9.5.8, 9.10.1, 9.8.3 or higher.

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
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-2024-39836?
CVE-2024-39836 has been scored as a medium severity vulnerability.
How to fix CVE-2024-39836?
To fix CVE-2024-39836: Update Mattermost to versions 9.11.0, 9.9.2, 9.5.8, 9.10.1, 9.8.3 or higher.
Is CVE-2024-39836 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-39836 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-2024-39836?
CVE-2024-39836 affects Mattermost Mattermost.
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