Arbitrary file upload in Atlassian Confluence Data Center
CVE-2020-29450
Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the avatar upload feature. The affected versions are before version 7.2.0.
Vulnerability class: Unrestricted File Upload
EPSS: 0.022 (80.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Atlassian Confluence_data_center
- Atlassian Confluence Server — versions unspecified
- Atlassian Confluence_server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@atlassian.com (x_refsource_MISC, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-29450?
- CVE-2020-29450 is a medium-severity vulnerability in Atlassian Confluence Data Center, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.5/10. Published 2021-01-19.
- How severe is CVE-2020-29450?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-29450 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.