CVE-2017-18890: Input Validation
First published: Fri Jun 19 2020(Updated: )
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows an attacker to create a button that, when pressed by a user, launches an API request.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <4.1.2 | |
| Mattermost | >=4.2.0<4.2.1 | |
| Mattermost | =4.3.0-rc1 | |
| Mattermost | =4.3.0-rc2 | |
| Mattermost | =4.3.0-rc3 | |
| Mattermost | =4.3.0-rc4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-18890?
CVE-2017-18890 is classified as a high severity vulnerability due to its potential for unauthorized API requests.
How do I fix CVE-2017-18890?
To fix CVE-2017-18890, upgrade Mattermost Server to version 4.3.0 or later.
Who is affected by CVE-2017-18890?
CVE-2017-18890 affects Mattermost Server versions before 4.3.0, 4.2.1, and 4.1.2.
What type of attack does CVE-2017-18890 enable?
CVE-2017-18890 enables attackers to create buttons that can trigger API requests when activated by users.
Is there a specific release where CVE-2017-18890 was fixed?
Yes, CVE-2017-18890 was fixed in the release of Mattermost Server 4.3.0.
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- version/mattermost/4.2.0
- version/mattermost/4.3.0-rc1
- version/mattermost/4.3.0-rc2
- version/mattermost/4.3.0-rc3
- version/mattermost/4.3.0-rc4