What is the severity of CVE-2017-18880?

CVE-2017-18880 is classified as a medium severity vulnerability due to its potential for exploitation through cross-site scripting (XSS).

How do I fix CVE-2017-18880?

To fix CVE-2017-18880, upgrade Mattermost Server to version 4.3.0 or later, or to 4.2.1 or later if you are using version 4.2.x.

Which versions of Mattermost Server are affected by CVE-2017-18880?

CVE-2017-18880 affects Mattermost Server versions prior to 4.3.0, and specifically versions 4.1.2, 4.2.0 up to 4.2.1, and all 4.3.0 release candidates.

What type of vulnerability is CVE-2017-18880?

CVE-2017-18880 is a cross-site scripting (XSS) vulnerability that can be exploited via the title_link field of a Slack attachment.

Is there a workaround for CVE-2017-18880?

There is no official workaround for CVE-2017-18880; it is recommended to update to a fixed version to mitigate the issue.

Vulnerability/
CVE-2017-18880

medium

6.1

CWE

19/6/2020

5/8/2024

CVE-2017-18880: 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 could occur via the title_link field of a Slack attachment.

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

https://mattermost.com/security-updates/

Frequently Asked Questions

What is the severity of CVE-2017-18880?
CVE-2017-18880 is classified as a medium severity vulnerability due to its potential for exploitation through cross-site scripting (XSS).
How do I fix CVE-2017-18880?
To fix CVE-2017-18880, upgrade Mattermost Server to version 4.3.0 or later, or to 4.2.1 or later if you are using version 4.2.x.
Which versions of Mattermost Server are affected by CVE-2017-18880?
CVE-2017-18880 affects Mattermost Server versions prior to 4.3.0, and specifically versions 4.1.2, 4.2.0 up to 4.2.1, and all 4.3.0 release candidates.
What type of vulnerability is CVE-2017-18880?
CVE-2017-18880 is a cross-site scripting (XSS) vulnerability that can be exploited via the title_link field of a Slack attachment.
Is there a workaround for CVE-2017-18880?
There is no official workaround for CVE-2017-18880; it is recommended to update to a fixed version to mitigate the issue.

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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

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