Low severity · published Jun 19, 2020
CVE-2018-21260
An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3
2.7
CVSS
0.7%
EPSS
No
On KEV
Description
An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3. WebSocket events were accidentally sent during certain user-management operations, violating user privacy.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
Mattermost Server · Mattermost
4.6.0 before 4.6.3; 4.7.0 before 4.7.4; 4.8.0 before 4.8.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-21260
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-21260
Vendor Advisory
https://mattermost.com/security-updates/
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