GitHub Advisoryadvisory · Go

GHSA-8pff-p3gx-w4jf Mattermost Server vulnerable to XSS via an uploaded file

MEDIUM Published 2022-05-24 Modified 2026-01-12 Official page ↗
Aliases
CVE-2017-18904
Ecosystem
Go
Packages
github.com/mattermost/mattermost-server
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Reviewed
2026-01-12

Affected packages

• Go github.com/mattermost/mattermost-server: < 3.9.2 → fixed in 3.9.2 • Go github.com/mattermost/mattermost-server: >= 3.10.0, < 3.10.2 → fixed in 3.10.2

Description

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. It allows XSS via an uploaded file.

Related

Alias · CVE (1)

  • CVE-2017-18904 An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References