CVE-2020-4027

Description

Affected versions of Atlassian Confluence Server and Data Center allowed remote attackers with system administration permissions to bypass velocity template injection mitigations via an injection vulnerability in custom user macros. The affected versions are before version 7.4.5, and from version 7.5.0 before 7.5.1.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.22%
Vendor Advisory atlassian.com
Affected: Atlassian Confluence Server
Affected: Atlassian Confluence Data Center
Published at:
Updated at:

References

Link Tags
https://jira.atlassian.com/browse/CONFSERVER-59898 issue tracking release notes patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-4027?
CVE-2020-4027 has been scored as a medium severity vulnerability.
How to fix CVE-2020-4027?
To fix CVE-2020-4027, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-4027 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-4027 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-4027?
CVE-2020-4027 affects Atlassian Confluence Server, Atlassian Confluence Data Center.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.