Mattermost fails to authenticate the source of certain types of post actions

2024-04-0509:30:39

CWE-284

GitHub Advisory Database

github.com

mattermost

authentication

vulnerability

post actions

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

9.1%

JSON

Mattermost versions 8.1.x before 8.1.11, 9.3.x before 9.3.3, 9.4.x before 9.4.4, and 9.5.x before 9.5.2 fail to authenticate the source of certain types of post actions, allowing an authenticated attacker to create posts as other users via a crafted post action.

Affected configurations

Vulners

Node

github.com\/mattermost\/mattermostserverRange<9.3.3

github.com\/mattermost\/mattermostserverRange<9.4.4

github.com\/mattermost\/mattermostserverRange<9.5.2

github.com\/mattermost\/mattermostserverRange<8.1.11

CPENameOperatorVersion
github.com/mattermost/mattermost/server/v8lt9.3.3
github.com/mattermost/mattermost/server/v8lt9.4.4
github.com/mattermost/mattermost/server/v8lt9.5.2
github.com/mattermost/mattermost/server/v8lt8.1.11

Name	Operator	Version
github.com/mattermost/mattermost/server/v8	lt	9.3.3
github.com/mattermost/mattermost/server/v8	lt	9.4.4
github.com/mattermost/mattermost/server/v8	lt	9.5.2
github.com/mattermost/mattermost/server/v8	lt	8.1.11