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osvGoogleOSV:GHSA-4GHX-8JW8-P76Q
HistoryNov 27, 2023 - 12:30 p.m.

Mattermost Open Redirect vulnerability

2023-11-2712:30:54
Google
osv.dev
5
mattermost
open redirect
vulnerability
redirect url
invalid custom url scheme
oauth
mobile login
software

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

0.0005 Low

EPSS

Percentile

15.9%

Mattermost fails to properly check a redirect URL parameter allowing for anΒ open redirect was possible when the user clicked β€œBack to Mattermost” after providing a invalid custom url scheme in /oauth/{service}/mobile_login?redirect_to=

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

0.0005 Low

EPSS

Percentile

15.9%

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