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githubGitHub Advisory DatabaseGHSA-W67V-PH4X-F48Q
HistoryApr 05, 2024 - 9:30 a.m.

Mattermost Server Improper Access Control

2024-04-0509:30:39
CWE-284
GitHub Advisory Database
github.com
3
mattermost server
access control
versions
endpoint
team admins

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

7 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

9.1%

Improper Access Control in Mattermost Server versions 9.5.x before 9.5.2, 9.4.x before 9.4.4, 9.3.x before 9.3.3, 8.1.x before 8.1.11 lacked proper access control in the /api/v4/users/me/teams endpointΒ allowingΒ a team admin to get the invite ID of their team, thus allowing them to invite users, even if the β€œAdd Members” permission was explicitly removed from team admins.

Affected configurations

Vulners
Node
github.com\/mattermost\/mattermostserverRange<9.3.3
OR
github.com\/mattermost\/mattermostserverRange<9.4.4
OR
github.com\/mattermost\/mattermostserverRange<9.5.2
OR
github.com\/mattermost\/mattermostserverRange<8.1.11

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

7 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

9.1%

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