Veracode Vulnerability DatabaseVERACODE:41047Missing Authorization
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.001 Low
EPSS
Percentile
25.9%
github.com/mattermost/mattermost-server is vulnerable to Missing Authorization. The vulnerability exists due to a lack of authorization checks when a user leaves a group, which allows an attacker to post a specially crafted /groupmsg command to obtain full message contents from a private channel.
References
github.com/advisories/GHSA-9v8g-3666-2499
github.com/mattermost/mattermost/commit/1629a6ca7fedeb7cf0b67d7f83dc2e51c387e6ef
github.com/mattermost/mattermost/commit/bcd5477a3f6eebc222b1378059e842b6d33e9eb2
github.com/mattermost/mattermost/commit/ea3f5187c33140a97f33f2304f0bf9fad26757be
mattermost.com/security-updates/
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.001 Low
EPSS
Percentile
25.9%