CVE-2023-35075: HTML injection via channel autocomplete
First published: Mon Nov 27 2023(Updated: )
Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/github.com/mattermost/mattermost-server/v6 | <7.8.13 | 7.8.13 |
| go/github.com/mattermost/mattermost/server/v8 | <8.1.4 | 8.1.4 |
| Mattermost Mattermost | <=7.8.12 | |
| Mattermost Mattermost | >=8.0.0<=8.1.3 |
Remedy
Update Mattermost Server to versions 7.8.13, 8.1.4 or higher.
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this mattermost vulnerability?
The vulnerability ID of this mattermost vulnerability is CVE-2023-35075.
What is the severity level of CVE-2023-35075?
The severity level of CVE-2023-35075 is low with a severity value of 3.1.
What is the affected software for CVE-2023-35075?
The affected software for CVE-2023-35075 is Mattermost, specifically versions up to and including 7.8.13 and versions up to and including 8.1.4.
How can an attacker exploit CVE-2023-35075?
An attacker can exploit CVE-2023-35075 by creating a channel name that is valid HTML, allowing them to inject HTML into a victim's page during autocomplete.
Is XSS possible as a result of CVE-2023-35075?
No, XSS is not possible as a result of CVE-2023-35075.
- collector/github-advisory-latest
- alias/GHSA-jcgv-3pfq-j4hr
- alias/CVE-2023-35075
- collector/nvd-api
- collector/nvd-cve
- collector/github-advisory
- agent/author
- agent/type
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/title
- agent/references
- agent/remedy
- agent/severity
- agent/weakness
- agent/tags
- agent/description
- agent/event
- agent/trending
- package-manager/go
- vendor/mattermost
- canonical/mattermost mattermost
- version/mattermost mattermost/7.8.12
- version/mattermost mattermost/8.0.0
- version/mattermost mattermost/8.1.3