CVE-2020-29450

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-19 · updated 2026-06-17
Weakness: CWE-434

Description

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.

Affected products

Atlassian Confluence Data Center: before 7.2.0 — fixed in 7.2.0
Atlassian Confluence Data Center: before 7.2.0 — fixed in 7.2.0

How to fix

Upgrade to a fixed version: Atlassian Confluence Data Center 7.2.0; Atlassian Confluence Data Center 7.2.0. Check the vendor advisory for mitigations.

References

https://jira.atlassian.com/browse/CONFSERVER-60854
https://jira.atlassian.com/browse/CONFSERVER-60854

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