CVE-2023-40703

Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowinga attacker toconsume excessive resources, possibly leading to Denial of Service, bypatching the field of a block using a specially crafted string.

ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
MattermostCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
VendorProductVersion
mattermostmattermost
𝑥
≤ 7.8.12
mattermostmattermost
8.0.0 ≤
𝑥
≤ 8.1.3
mattermostmattermost
9.0.0 ≤
𝑥
≤ 9.0.1
mattermostmattermost
9.1.0
𝑥
= Vulnerable software versions