CVE-2019-3398: Atlassian Confluence Server and Data Center Path Traversal Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: yes — in CISA KEV since 2021-11-03
EPSS: 97.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-04-18 · updated 2026-06-17
Weakness: CWE-22

Description

Confluence Server and Data Center had a path traversal vulnerability in the downloadallattachments resource. A remote attacker who has permission to add attachments to pages and / or blogs or to create a new space or a personal space or who has 'Admin' permissions for a space can exploit this path traversal vulnerability to write files to arbitrary locations which can lead to remote code execution on systems that run a vulnerable version of Confluence Server or Data Center. All versions of Confluence Server from 2.0.0 before 6.6.13 (the fixed version for 6.6.x), from 6.7.0 before 6.12.4 (the fixed version for 6.12.x), from 6.13.0 before 6.13.4 (the fixed version for 6.13.x), from 6.14.0 before 6.14.3 (the fixed version for 6.14.x), and from 6.15.0 before 6.15.2 are affected by this vulnerability.

Affected products

Atlassian Confluence Data Center: from 2.0 before 6.6.13; from 6.7.0 before 6.12.4; from 6.13.0 before 6.13.4; from 6.14.0 before 6.14.3; from 6.15.0 before 6.15.2 — fixed in 6.12.4, 6.13.4, 6.14.3, 6.15.2, 6.6.13

How to fix

Upgrade to a fixed version: Atlassian Confluence Data Center 6.12.4, 6.13.4, 6.14.3, 6.15.2. Check the vendor advisory for mitigations.

References

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