Vulnerability Details : CVE-2018-21257
An issue was discovered in Mattermost Server before 5.1. It allows attackers to bypass intended access restrictions (for setting a channel header) via the Channel header slash command API.
Products affected by CVE-2018-21257
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-21257
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-21257
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2018-21257
-
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-21257
-
https://mattermost.com/security-updates/
Security Updates - Mattermost - Open Source, On-Prem or Private Cloud MessagingVendor Advisory
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