Medium severity · published Nov 6, 2023
CVE-2023-5967
Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin
4.3
CVSS
0.5%
EPSS
No
On KEV
Description
Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
through 7.8.11; 8.0.0 through 8.0.3; 8.1.0 through 8.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5967
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5967
Vendor Advisory
https://mattermost.com/security-updates
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