CVE-2019-3396

critical

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.

From the Tenable Blog

Vulnerability in Atlassian Confluence Widget Connector CVE-2019-3396 Exploited |

Published:

Since Atlassian published a Confluence Security Advisory fixes for vulnerabilities CVE-2019-3395 and CVE-2019-3396, attackers have been probing for and exploiting CVE-2019-3396 on vulnerable systems.

References

https://www.greynoise.io/blog/spike-in-atlassian-exploitation-attempts-patching-is-crucial

https://www.tenable.com/cyber-exposure/a-look-inside-the-ransomware-ecosystem

https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a

https://media.defense.gov/2020/Oct/20/2002519884/-1/-1/0/CSA_CHINESE_EXPLOIT_VULNERABILITIES_UOO179811.PDF

https://www.alertlogic.com/blog/active-exploitation-of-confluence-vulnerability-cve-2019-3396-dropping-gandcrab-ransomware/

https://www.exploit-db.com/exploits/46731/

https://www.mandiant.com/sites/default/files/2022-02/rt-apt41-dual-operation.pdf

https://www.tenable.com/blog/government-agencies-warn-of-state-sponsored-actors-exploiting-publicly-known-vulnerabilities

https://www.tenable.com/blog/cve-2019-3396-vulnerability-in-atlassian-confluence-widget-connector-exploited-in-the-wild

https://www.tenable.com/blog/objects-in-mirror-are-closer-than-they-appear-reflecting-on-the-cybersecurity-threats-from-2019

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-3396

https://jira.atlassian.com/browse/CONFSERVER-57974

http://packetstormsecurity.com/files/161065/Atlassian-Confluence-6.12.1-Template-Injection.html

http://packetstormsecurity.com/files/152568/Atlassian-Confluence-Widget-Connector-Macro-Velocity-Template-Injection.html

Details

Source: Mitre, NVD

Published: 2019-03-25

Updated: 2025-10-24

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.94472