CVE-2024-29977

Malicious remote can create arbitrary reactions on arbitrary posts

Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts

Remediation

Solution:

  • Update Mattermost to versions 9.10.0, 9.9.1, 9.5.7 or higher.

Category

2.7
CVSS
Severity: Low
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-2024-29977?
CVE-2024-29977 has been scored as a low severity vulnerability.
How to fix CVE-2024-29977?
To fix CVE-2024-29977: Update Mattermost to versions 9.10.0, 9.9.1, 9.5.7 or higher.
Is CVE-2024-29977 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-29977 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-2024-29977?
CVE-2024-29977 affects Mattermost Mattermost.
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