Vulnerability in Atlassian Confluence
CVE-2020-4027
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 af…
EPSS: 0.015 (71.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Atlassian Confluence
- Atlassian Confluence Data Center — versions unspecified, 7.5.0
- Atlassian Confluence Server — versions unspecified, 7.5.0
- Atlassian Confluence_server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@atlassian.com (Patch, x_refsource_MISC, Release Notes, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-4027?
- CVE-2020-4027 is a medium-severity vulnerability in Atlassian Confluence, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2020-07-01.
- How severe is CVE-2020-4027?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2020-4027 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.