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osvGoogleOSV:GHSA-H8WH-F7GW-FWPR
HistorySep 29, 2023 - 12:30 p.m.

Mattermost Incorrect Authorization vulnerability

2023-09-2912:30:16
Google
osv.dev
4
mattermost
authorization
vulnerability
permissions
system role
channels
dm conversation

4.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

14.0%

Mattermost fails to properly check permissions when retrieving a post allowing forΒ a System Role with the permission to manage channels to read the posts of a DM conversation.

4.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

14.0%

Related for OSV:GHSA-H8WH-F7GW-FWPR