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GoogleOSV:GHSA-CMC8-222C-VQP9

HistoryAug 01, 2024 - 3:32 p.m.

Mattermost failed to properly validate that the channel that comes from the sync message is a shared channel

2024-08-0115:32:21

Google

osv.dev

mattermost

validation

vulnerability

shared channels

software

remote malicious .

CVSS3

8.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

16.8%

JSON

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to properly validate that the channel that comes from the sync message is a shared channel, when shared channels are enabled, which allows a malicious remote to add users to arbitrary teams and channels

References

github.com/mattermost/mattermost

mattermost.com/security-updates

nvd.nist.gov/vuln/detail/CVE-2024-39274

pkg.go.dev/vuln/GO-2024-3028

CVSS3

8.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

16.8%

JSON

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