CVE-2024-36257

Mattermost versions 9.5.x <= 9.5.5 and 9.8.0,when using shared channels with multiple remote servers connected,fail to check that the remote server A requesting the server B to update the profile picture of a user is the remote that actually has the user as a local one .This allows a malicious remote A to change the profile images of users that belong to another remote server C that is connected to the server A.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
MattermostCNA
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CISA-ADPADP
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
VendorProductVersion
mattermostmattermost
9.5.0 ≤
𝑥
< 9.5.6
mattermostmattermost
9.8.0
𝑥
= Vulnerable software versions