CVE-2023-4105

Attachment of deleted message in a thread remains accessible and downloadable

Description

Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message

Remediation

Solution:

  • Update Mattermost Server to versions 7.10.4, 7.9.6, 7.8.8 or higher

Category

3.1
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.25%
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-2023-4105?
CVE-2023-4105 has been scored as a low severity vulnerability.
How to fix CVE-2023-4105?
To fix CVE-2023-4105: Update Mattermost Server to versions 7.10.4, 7.9.6, 7.8.8 or higher
Is CVE-2023-4105 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-4105 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-2023-4105?
CVE-2023-4105 affects Mattermost Mattermost.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.