What’s Vulnerable › Vulnerabilities
CVE-2016-11065
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-06-19 · updated 2026-06-17
- Weakness: CWE-732
Description
An issue was discovered in Mattermost Server before 3.3.0. An attacker could use the WebSocket feature to send pop-up messages to users or change a post's appearance.
Affected products
- Mattermost: before 3.3.0 — fixed in 3.3.0
How to fix
Upgrade to a fixed version: Mattermost 3.3.0. Check the vendor advisory for mitigations.
References
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