CVE-2024-39807

LOW

Mattermost 9.5.0-9.5.5 and 9.8.0 - Exposure of Sensitive Information via Webhook Event Recipients

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 3.1
EPSS 0.0044
EPSS Percentile 63.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (1)
mattermost/mattermost 9.5.0 - 9.5.6
Published Jul 03, 2024
Tracked Since Feb 18, 2026