What is the severity of CVE-2024-1952?

CVE-2024-1952 has a medium severity, as it allows authenticated attackers to access sensitive post contents.

How do I fix CVE-2024-1952?

To fix CVE-2024-1952, update your Mattermost Server to version 8.1.9 or later.

Which versions of Mattermost are affected by CVE-2024-1952?

CVE-2024-1952 affects Mattermost Server versions 8.1.0 to 8.1.8.

Who can exploit CVE-2024-1952?

CVE-2024-1952 can be exploited by authenticated attackers who control the update of ephemeral posts.

What type of vulnerability is CVE-2024-1952?

CVE-2024-1952 is a data exposure vulnerability due to improper data sanitization.

Vulnerability/
CVE-2024-1952

medium

4.3

CWE

200

29/2/2024

13/12/2024

CVE-2024-1952: Infoleak

First published: Thu Feb 29 2024(Updated: )

Mattermost version 8.1.x before 8.1.9 fails to sanitize data associated with permalinks when a plugin updates an ephemeral post, allowing an authenticated attacker who can control the ephemeral post update to access individual posts' contents in channels they are not a member of.

Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com

Affected Software	Affected Version	How to fix
go/github.com/mattermost/mattermost/server/v8	>=9.0.0<9.4.0	9.4.0
Mattermost	>=8.1.0<8.1.9

Remedy

Update Mattermost Server to versions 9.4, 8.1.9 or higher.

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2024-1952?
CVE-2024-1952 has a medium severity, as it allows authenticated attackers to access sensitive post contents.
How do I fix CVE-2024-1952?
To fix CVE-2024-1952, update your Mattermost Server to version 8.1.9 or later.
Which versions of Mattermost are affected by CVE-2024-1952?
CVE-2024-1952 affects Mattermost Server versions 8.1.0 to 8.1.8.
Who can exploit CVE-2024-1952?
CVE-2024-1952 can be exploited by authenticated attackers who control the update of ephemeral posts.
What type of vulnerability is CVE-2024-1952?
CVE-2024-1952 is a data exposure vulnerability due to improper data sanitization.

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