Medium severity · published Jun 19, 2020
CVE-2018-21265
An issue was discovered in Mattermost Desktop App before 4.0.0
5.3
CVSS
0.8%
EPSS
No
On KEV
Description
An issue was discovered in Mattermost Desktop App before 4.0.0. It mishandled the Same Origin Policy for setPermissionRequestHandler (e.g., video, audio, and notifications).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MD
Mattermost Desktop · Mattermost
before 4.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-21265
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-21265
Vendor Advisory
https://mattermost.com/security-updates/
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