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

Vulnerability summary

CVE-2019-3398 is a high (CVSS 9.0) vulnerability in Atlassian Confluence Server and Data Center. It is known to be exploited: CISA lists it, first on 03-11-2021. EPSS estimates a 97.03% chance of exploitation in the next 30 days, higher than 99.8% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 18-04-2019
   PublishedVulnerability first disclosed.
2. 03-11-2021
   Added to CISA KEVExploitedAtlassian Confluence Server and Data Center Path Traversal Vulnerability
3. 03-05-2022
   CISA remediation dueDeadline passedApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

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.

• CWE-22Improper Limitation of a Pathname to a Restricted DirectoryThe product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.