Medium severity · published Jul 3, 2024
CVE-2024-6428
Mattermost versions 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2, 9.5.x <= 9.5.5 fail to prevent specifying a RemoteId when creating a new user which allows an attacker to specify both a…
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Mattermost versions 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2, 9.5.x <= 9.5.5 fail to prevent specifying a RemoteId when creating a new user which allows an attacker to specify both a remoteId and the user ID, resulting in creating a user with a user-defined user ID. This can cause some broken functionality in User Management such administrative actions against the user not working.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
9.5.0 before 9.5.6; 9.6.0 before 9.6.3; 9.7.0 before 9.7.5; 9.8.0 before 9.8.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-6428
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-6428
Vendor Advisory
https://mattermost.com/security-updates
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