Vulnerabilities > Mattermost

DATE CVE VULNERABILITY TITLE RISK
2023-06-16 CVE-2023-2793 Resource Exhaustion vulnerability in Mattermost
Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.
network
low complexity
mattermost CWE-400
6.5
2023-06-16 CVE-2023-2797 Injection vulnerability in Mattermost
Mattermost fails to sanitize code permalinks, allowing an attacker to preview code from private repositories by posting a specially crafted permalink on a channel.
network
low complexity
mattermost CWE-74
6.5
2023-06-16 CVE-2023-2831 Resource Exhaustion vulnerability in Mattermost
Mattermost fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.
network
low complexity
mattermost CWE-400
6.5
2023-06-16 CVE-2023-2783 Missing Authorization vulnerability in Mattermost
Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.
network
low complexity
mattermost CWE-862
4.3
2023-06-16 CVE-2023-2784 Missing Authorization vulnerability in Mattermost
Mattermost fails to verify if the requestor is a sysadmin or not, before allowing `install` requests to the Apps allowing a regular user send install requests to the Apps.
network
low complexity
mattermost CWE-862
6.5
2023-06-16 CVE-2023-2786 Missing Authorization vulnerability in Mattermost
Mattermost fails to properly check the permissions when executing commands allowing a member with no permissions to post a message in a channel to actually post it by executing channel commands.
network
low complexity
mattermost CWE-862
4.3
2023-06-16 CVE-2023-2787 Missing Authorization vulnerability in Mattermost
Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API.
network
low complexity
mattermost CWE-862
6.5
2023-06-16 CVE-2023-2788 Insufficient Session Expiration vulnerability in Mattermost
Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.
network
low complexity
mattermost CWE-613
6.5
2023-06-16 CVE-2023-2791 Missing Authorization vulnerability in Mattermost
When creating a playbook run via the /dialog API, Mattermost fails to validate all parameters, allowing an authenticated attacker to edit an arbitrary channel post.
network
low complexity
mattermost CWE-862
4.3
2023-05-29 CVE-2023-2808 Unspecified vulnerability in Mattermost
Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.
network
low complexity
mattermost
5.3