CVE-2017-18877: XSS
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. XSS attacks could occur against an OAuth 2.0 allow/deny page.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | >=4.1.0<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-2017-18877?
CVE-2017-18877 has a medium severity level due to the potential for XSS attacks.
How do I fix CVE-2017-18877?
To fix CVE-2017-18877, upgrade Mattermost Server to version 4.3.0 or later.
What versions of Mattermost Server are affected by CVE-2017-18877?
CVE-2017-18877 affects Mattermost Server versions prior to 4.3.0, including 4.1.2, 4.2.1, and earlier.
What kind of attack is associated with CVE-2017-18877?
CVE-2017-18877 is associated with Cross-Site Scripting (XSS) attacks targeting an OAuth 2.0 allow/deny page.
Is there a patch available for CVE-2017-18877?
Yes, a patch is available by upgrading to Mattermost Server version 4.3.0 or later.
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- vendor/mattermost
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- version/mattermost/4.1.0
- 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