CVE-2016-11070

FAUCET Score

CVE-2016-11070 describes a Cross-Site Scripting (XSS) vulnerability in Mattermost Server versions prior to 3.1.0, specifically exploitable through theme color-code values. With a CVSS score of 5.4 (Medium), this vulnerability requires low privileges and user interaction, allowing an attacker to impact confidentiality and integrity with low severity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 3.1.0CPE matchmatch criteria	cpe:2.3:a:mattermost:mattermost_server::::::::

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

Exploitability Score

2.3

Impact Score

2.7

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.56%

Probability of exploitation in next 30 days

EPSS Percentile

43.0%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0056 is in the 69th percentile among its peer group of 15,225 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa

Product: github.com/mattermost/mattermost-serverFixed in: 3.1.0

Vendor Advisories (1)

goGHSA-h8qw-xqm9-q66jmedium

Mattermost Server is vulnerable to XSS through customizable theme color-code values

May 24, 2022

References

mattermost.com / security-updates

Vendor Advisory