CVE-2017-18882: 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 can occur via OpenGraph data.
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-2017-18882?
CVE-2017-18882 has a medium severity rating due to its potential for exploitation via cross-site scripting (XSS).
How do I fix CVE-2017-18882?
To fix CVE-2017-18882, you should upgrade Mattermost Server to version 4.3.0 or later, or the specified remedial versions 4.2.1 or 4.1.2.
What types of attacks can CVE-2017-18882 enable?
CVE-2017-18882 can enable attackers to execute malicious scripts in the context of a user's session through XSS attacks.
What versions of Mattermost are affected by CVE-2017-18882?
Mattermost Server versions prior to 4.3.0, 4.2.1, and 4.1.2 are affected by CVE-2017-18882.
Is there a workaround for CVE-2017-18882 if immediate patching isn’t possible?
There are no official workarounds for CVE-2017-18882; patching to a secure version is strongly recommended.
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- version/mattermost/4.3.0-rc1
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