CVE-2024-39836

MEDIUM

Mattermost <9.9.1, 9.5.7, 9.10.0, 9.8.2 - Info Disclosure

Title source: llm

Description

Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to ensure that remote/synthetic users cannot create sessions or reset passwords, which allows the munged email addresses, created by shared channels, to be used to receive email notifications and to reset passwords, when they are valid, functional emails.

References (1)

Core 1

Core References

Vendor Advisory

https://mattermost.com/security-updates

Scores

CVSS v3 4.8

EPSS 0.0026

EPSS Percentile 17.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-693

Status published

Products (2)

mattermost/mattermost 9.5.0 - 9.5.8

mattermost/mattermost 9.9.0 - 9.9.2Go

Published Aug 22, 2024

Tracked Since Feb 18, 2026