Low severity · published Apr 5, 2024
CVE-2024-21848
Users maintain access to active call after being removed from a channel
3.1
CVSS
0.3%
EPSS
No
On KEV
Description
Improper Access Control in Mattermost Server versions 8.1.x before 8.1.11 allows an attacker that is in a channel with an active call to keep participating in the call even if they are removed from the channel
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
8.1.0 through 8.1.10 · source: vendor
MS
Mattermost Server · Mattermost
8.1.0 before 8.1.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-21848
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-21848
Vendor Advisory
https://mattermost.com/security-updates
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