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Veracode Vulnerability DatabaseVERACODE:48428

HistoryAug 09, 2024 - 6:24 a.m.

Improper Access Control

2024-08-0906:24:05

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

github

mattermost

server

access control

vulnerability

modification

local users

remote user

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

6.5

Confidence

High

EPSS

Percentile

14.1%

JSON

github.com/mattermost/mattermost-server is vulnerable Improper Access Control. The vulnerability is caused due to a failure in disallowing the modification of local users when syncing users in shared channels. This allows a malicious remote user to overwrite an existing local user.

References

github.com/advisories/GHSA-56mc-f9w7-2wxq

mattermost.com/security-updates

mattermost.com/security-updates/