Medium severity · published Jan 18, 2022
CVE-2021-37864
Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even…
6.5
CVSS
0.6%
EPSS
No
On KEV
Description
Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even when this is denied by system administrators by directly accessing the APIs.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
through 6.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37864
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-37864
Vendor Advisory
https://mattermost.com/security-updates/
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