CVE-2023-40703CWE-400

Denial of Service via specially crafted block fields in Mattermost Boards

Medium · published November 27, 2023

CVSS v3.1
4.3
EPSS
1%
Percentile
53.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00723 · 53.5th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2023-11-27T09:08Z
EPSS history
Timeline
  • 27 NOV 09:08Z
    Denial of Service via specially crafted block fields in Mattermost Boards
    cvelistv5