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CVE-2020-7799

HighPublished

An issue was discovered in FusionAuth before 1.11.0. An authenticated user, allowed to edit e-mail templates (Home -> Settings -> Email Templates) or themes...

Published: Jan 28, 2020
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Aug 7, 2026

Primary CVSS

7.2/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

19.8%

Moderate · next 30 days

Percentile: 97.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

An issue was discovered in FusionAuth before 1.11.0. An authenticated user, allowed to edit e-mail templates (Home -> Settings -> Email Templates) or themes (Home -> Settings -> Themes), can execute commands on the underlying operating system by abusing freemarker.template.utility.Execute in the Apache FreeMarker engine that processes custom templates.

Sources

CVE-2020-7799Exploit
Batch detection and exploitation script for CVE-2020-7799. Reads URLs from a text file and runs Python-based exploit against each target.
cve-2020-7799Scanner
批量检测cve-2020-7799

Responsible use

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