Medium severity · published May 26, 2024
CVE-2024-31859
Member promoted to channel admin via playbooks run linking to channel
6.3
CVSS
0.2%
EPSS
No
On KEV
Description
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% 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 through 9.5.3; 9.6.0 through 9.6.1; 8.1.0 through 8.1.12 · source: vendor
MS
Mattermost Server · Mattermost
8.1.0 before 8.1.13; 9.5.0 before 9.5.4; 9.6.0 before 9.6.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-31859
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-31859
Vendor Advisory
https://mattermost.com/security-updates
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