CVE-2024-43813 IDOR when marking read a user's channel

Medium 4.3 Published Updated

Authenticated users can mark any channel as read for any other user due to missing access controls, allowing unauthorized state modification.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-43813?

CVE-2024-43813 is a medium-severity missing authorization vulnerability in Mattermost Mattermost, published on 22 Aug 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Mattermost versions 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 fail to enforce proper access controls which allows any authenticated user, including guests, to mark any channel inside any team as read for any user.

Weakness: CWE-284

Which versions are affected by CVE-2024-43813?

It affects 1 product.

Products include Mattermost Mattermost.

How do I fix CVE-2024-43813?

No fix has been published for CVE-2024-43813 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-43813 being exploited?

There is no known exploitation of CVE-2024-43813 in the wild and no public exploit code.

All Mattermost Mattermost vulnerabilities

Sources

Also known as GHSA-p433-57hw-rf68.

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