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osvGoogleOSV:GHSA-VVPG-55P7-5H8W
HistoryAug 01, 2024 - 3:32 p.m.

Mattermost did not properly restrict channel creation

2024-08-0115:32:23
Google
osv.dev
3
mattermost
channel creation
vulnerability
versions 9.9.x
9.5.x
shared channels

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

AI Score

7.1

Confidence

High

EPSS

0

Percentile

14.7%

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly restrict channel creation which allows a malicious remote to create arbitrary channels, when shared channels were enabled.

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

AI Score

7.1

Confidence

High

EPSS

0

Percentile

14.7%

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