6.1med
CVE-2016-11071
Mattermost Server is vulnerable to XSS through lack of link relationship attributes `noreferrer` and `noopener`
Also known as GHSA-h3qg-w9j5-wh3m, GO-2025-4058
Published 6 y ago · modified 4 mo ago · JSON
CVSS
6.1
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.7%
percentile 53%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
0.69% probability of exploitation in the next 30 days, higher than 53% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server | <3.1.0 <3.1.0+incompatible | 3.1.0 3.1.0+incompatible |
Classification
- Weakness
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
- mattermost.com /security-updates/ · x_refsource_CONFIRM, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2016-11071 · advisory
- github.com /mattermost/mattermost · package
- mattermost.com /security-updates · web
- github.com /advisories/GHSA-h3qg-w9j5-wh3m · advisory
Sources
- CVE List: CVE-2016-11071
- GitHub Advisory: GHSA-h3qg-w9j5-wh3m
- NVD: CVE-2016-11071
- OSV: GO-2025-4058
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.