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Mattermost Injection vulnerability

Low severity GitHub Reviewed Published Nov 27, 2023 to the GitHub Advisory Database • Updated Nov 28, 2023

Package

gomod github.com/mattermost/mattermost-server/v6 (Go)

Affected versions

< 7.8.13

Patched versions

7.8.13
gomod github.com/mattermost/mattermost/server/v8 (Go)
< 8.1.4
8.1.4

Description

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.

References

Published by the National Vulnerability Database Nov 27, 2023
Published to the GitHub Advisory Database Nov 27, 2023
Reviewed Nov 28, 2023
Last updated Nov 28, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS score

0.048%
(19th percentile)

Weaknesses

CVE ID

CVE-2023-35075

GHSA ID

GHSA-jcgv-3pfq-j4hr

Source code

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