What’s Vulnerable › Vulnerabilities
CVE-2017-18914
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% 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-754
Description
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can occur on an error page even if it is not on an allowlist.
Affected products
- Mattermost: before 3.6.7; from 3.7.0 before 3.7.5; from 3.8.0 before 3.8.2 — fixed in 3.6.7, 3.7.5, 3.8.2
How to fix
Upgrade to a fixed version: Mattermost 3.6.7, 3.7.5, 3.8.2. Check the vendor advisory for mitigations.
References
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