Medium severity · published Jun 19, 2020
CVE-2018-21261
An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3
4.3
CVSS
0.6%
EPSS
No
On KEV
Description
An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3. An e-mail invite accidentally included the team invite_id, which leads to unintended excessive invitation privileges.
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)0.6% · higher than 48% 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-2018-21261
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-21261
Vendor Advisory
https://mattermost.com/security-updates/
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