CVE-2017-18887: Infoleak
Published Jun 19, 2020
·Updated
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It discloses the team creator's e-mail address to members.
Affected Software
6 affected components
Mattermost Mattermost Server<4.1.2
Mattermost Mattermost Server>=4.2.0<4.2.1
Mattermost Mattermost Server=4.3.0-rc1
Mattermost Mattermost Server=4.3.0-rc2
Mattermost Mattermost Server=4.3.0-rc3
Mattermost Mattermost Server=4.3.0-rc4
Event History
Jun 19, 2020
CVE Published
via MITRE·06:10 PM
Data Sourced
via MITRE·06:10 PM
Description
Frequently Asked Questions
1
What is the severity of CVE-2017-18887?
CVE-2017-18887 is considered a medium severity vulnerability due to the disclosure of the team creator's e-mail address.
2
How do I fix CVE-2017-18887?
To fix CVE-2017-18887, upgrade Mattermost Server to version 4.3.0 or later.
3
What versions of Mattermost Server are affected by CVE-2017-18887?
CVE-2017-18887 affects Mattermost Server versions prior to 4.3.0, specifically 4.1.2, 4.2.0 to 4.2.1, and all release candidates before 4.3.0.
4
What type of information is disclosed in CVE-2017-18887?
CVE-2017-18887 discloses the e-mail address of the team creator to other team members.
5
Can I protect my Mattermost Server from CVE-2017-18887 without upgrading?
Unfortunately, the only way to fully mitigate CVE-2017-18887 is by upgrading to a non-vulnerable version.