CVE-2024-9155

Insufficient Authorization On Unlinked Channel Files

Description

Mattermost versions 9.10.x <= 9.10.1, 9.9.x <= 9.9.2, 9.5.x <= 9.5.8 fail to limit access to channels files that have not been linked to a post which allows an attacker to view them in channels that they are a member of.

Remediation

Solution:

  • Update Mattermost to versions 9.11.0, 9.10.2, 9.9.3, 9.5.9 or higher.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.06%
Affected: Mattermost Mattermost
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2024-9155?
CVE-2024-9155 has been scored as a medium severity vulnerability.
How to fix CVE-2024-9155?
To fix CVE-2024-9155: Update Mattermost to versions 9.11.0, 9.10.2, 9.9.3, 9.5.9 or higher.
Is CVE-2024-9155 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-9155 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-2024-9155?
CVE-2024-9155 affects Mattermost Mattermost.
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