Vulnerability Details : CVE-2023-4478
Mattermost fails to restrict which parameters' values it takes from the request during signup allowing an attacker to register users as inactive, thus blocking them from later accessing Mattermost without the system admin activating their accounts.
Products affected by CVE-2023-4478
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:8.0.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-4478
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 39 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-4478
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
3.9
|
4.2
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
2.8
|
1.4
|
Mattermost, Inc. |
CWE ids for CVE-2023-4478
-
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.Assigned by:
- nvd@nist.gov (Primary)
- responsibledisclosure@mattermost.com (Secondary)
References for CVE-2023-4478
-
https://mattermost.com/security-updates
Security Updates - Mattermost Open Source Collaboration PlatformVendor Advisory
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