CVE-2019-3396

CRITICAL9.8

CISA KEV

Published 2019-03-25 · Updated 2026-06-17 · Source security@atlassian.com

Summary

CVE-2019-3396 is a critical-severity (CVSS 9.8) vulnerability in Atlassian Confluence Server and Data Server. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Atlassian has 13 vulnerabilities in the KEV catalog, 8 of them linked to ransomware.

All 13 known-exploited Atlassian vulnerabilities →

Description

The Widget Connector macro in Atlassian Confluence Server before version 6.6.12 (the fixed version for 6.6.x), from version 6.7.0 before 6.12.3 (the fixed version for 6.12.x), from version 6.13.0 before 6.13.3 (the fixed version for 6.13.x), and from version 6.14.0 before 6.14.2 (the fixed version for 6.14.x), allows remote attackers to achieve path traversal and remote code execution on a Confluence Server or Data Center instance via server-side template injection.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-22CWE-22

CISA Known-Exploited Vulnerability

Product: Atlassian — Confluence Server and Data Server

Name: Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerability

Date added: 2021-11-03 · Due: 2022-05-03

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

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added 2022-09-30
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added 2022-07-29

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