Medium severity · published Jul 17, 2023
CVE-2023-3582
Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have…
4.3
CVSS
0.4%
EPSS
No
On KEV
Description
Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to,
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
Mattermost Server · Mattermost
7.8.0 before 7.8.7; 7.9.0 before 7.9.5; 7.10.0 before 7.10.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3582
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3582
Vendor Advisory
https://mattermost.com/security-updates
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