CVE-2016-11071
MEDIUM6.1EPSS 0.36%Mattermost Server is vulnerable to XSS through lack of link relationship attributes `noreferrer` and `noopener`
Published: 5/24/2022Modified: 11/5/2025
Description
An issue was discovered in Mattermost Server before 3.1.0. It allows XSS because the noreferrer and noopener protection mechanisms were not in place.
Affected packages (2)
- Go/github.com/mattermost/mattermost-serverfrom 0, < 3.1.0
- Go/github.com/mattermost/mattermost-serverfrom 0, < 3.1.0+incompatible
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |