CVE-2023-47168 Open redirect in /oauth/<service>/mobile_login?redirect_to=

What is CVE-2023-47168?

CVE-2023-47168 is a medium-severity vulnerability in Mattermost Mattermost, published on 27 Nov 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Mattermost fails to properly check a redirect URL parameter allowing for an open redirect was possible when the user clicked "Back to Mattermost" after providing a invalid custom url scheme in /oauth/{service}/mobile_login?redirect_to=

Weakness: CWE-601

Which versions are affected by CVE-2023-47168?

8 open source packages ship an affected version, including github.com/mattermost/mattermost/server/v8 and github.com/mattermost/mattermost-server/v6. It affects 1 product.

Products include Mattermost Mattermost.

How do I fix CVE-2023-47168?

Upgrade github.com/mattermost/mattermost/server/v8 to a fixed version for your release line: 8.1.4, 9.0.2 or 9.1.1.

Is CVE-2023-47168 being exploited?

There is no known exploitation of CVE-2023-47168 in the wild and no public exploit code.

Other vulnerabilities in Mattermost Mattermost

• CVE-2019-20851 Path traversal in n/a Critical 9.1
• CVE-2024-39274 Malicious remote can add users to arbitrary teams and channels High 8.7
• CVE-2024-39777 Malicious remote can invite itself to an arbitrary local channel High 8.7
• CVE-2024-39830 Timing attack during remote cluster token comparison when shared channels are enabled High 8.1
• CVE-2023-3615 Lack of server certificate validation in websockets connection High 8.1

All Mattermost Mattermost vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4ghx-8jw8-p76q.