Sensitive Information Disclosure

2024-03-0106:32:18

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

mattermost

vulnerability

unauthorized access

post contents

CVSS3

3.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.5

Confidence

High

EPSS

Percentile

9.0%

JSON

Mattermost server is vulnerable to Sensitive Information Disclosure. The vulnerability is caused as the server fails to sanitize data associated with permalinks when a plugin updates an ephemeral post. This results an authenticated attacker who can control the ephemeral post update to access individual post’s contents in channels they are not a member of.