Vulnerability Details : CVE-2023-40703
Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string.
Vulnerability category: Denial of service
Products affected by CVE-2023-40703
- cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost:9.1.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-40703
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 35 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-40703
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
2.8
|
1.4
|
Mattermost, Inc. |
CWE ids for CVE-2023-40703
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by:
- nvd@nist.gov (Primary)
- responsibledisclosure@mattermost.com (Secondary)
References for CVE-2023-40703
-
https://mattermost.com/security-updates
Security Updates - Mattermost Open Source Collaboration PlatformVendor Advisory
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