MattermostVULNRICHMENT:CVE-2024-39807CVE-2024-39807 Channel IDs of archived/restored channels leaked via webhook events
CVSS3
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
Confidence
High
EPSS
Percentile
17.2%
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial
Mattermost versions 9.5.x <= 9.5.5 and 9.8.0 fail to properly sanitize the recipients of a webhook event which allows an attacker monitoring webhook events to retrieve the channel IDs of archived or restored channels.
CNA Affected
[
{
"vendor": "Mattermost",
"product": "Mattermost",
"versions": [
{
"status": "affected",
"version": "9.8.0"
},
{
"status": "affected",
"version": "9.5.0",
"versionType": "semver",
"lessThanOrEqual": "9.5.5"
},
{
"status": "unaffected",
"version": "9.9.0"
},
{
"status": "unaffected",
"version": "9.8.1"
},
{
"status": "unaffected",
"version": "9.5.6"
}
],
"defaultStatus": "unaffected"
}
]References
Related
CVSS3
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
Confidence
High
EPSS
Percentile
17.2%
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial