CVE-2016-11063 — Cross-site Scripting in Mattermost Mattermost-server

CWE-79 — Cross-site Scripting5 documents4 sources
Severity
6.1MEDIUMNVD
EPSS
0.4%
top 41.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Github.com Mattermost Mattermost-serverMattermost Server
Timeline
PublishedJun 19
Latest updateOct 30

Description

An issue was discovered in Mattermost Server before 3.5.1. XSS can occur via file preview.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages2 packages

🔴Vulnerability Details

4
OSV
Mattermost Server vulnerable to Cross-site Scripting through file preview feature in github.com/mattermost/mattermost-server↗2025-10-30
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OSV
Mattermost Server vulnerable to Cross-site Scripting through file preview feature↗2022-05-24
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GHSA
Mattermost Server vulnerable to Cross-site Scripting through file preview feature↗2022-05-24
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CVEList
CVE-2016-11063: An issue was discovered in Mattermost Server before 3↗2020-06-19
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CVE-2016-11063 — Cross-site Scripting | cvebase