CVE-2019-3396

Name: CVE-2019-3396
Creator: NVD / NIST
Published: 2019-03-25T19:29:01.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.91%

Last modified Jun 17, 2026

CVE-2019-3396 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.91% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

99.91%

100.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Atlassian	Confluence Server	< 6.6.12
Atlassian	Confluence Server	>= 6.7.0, < 6.12.3
Atlassian	Confluence Server	>= 6.13.0, < 6.13.3
Atlassian	Confluence Server	>= 6.14.0, < 6.14.2

References

http://packetstormsecurity.com/files/152568/Atlassian-Confluence-Widget-Connector-Macro-Velocity-Template-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/161065/Atlassian-Confluence-6.12.1-Template-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://www.rapid7.com/db/modules/exploit/multi/http/confluence_widget_connectorExploit, Third Party Advisory, VDB Entry
https://jira.atlassian.com/browse/CONFSERVER-57974Issue Tracking, Patch, Vendor Advisory
https://www.exploit-db.com/exploits/46731/Exploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/152568/Atlassian-Confluence-Widget-Connector-Macro-Velocity-Template-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/161065/Atlassian-Confluence-6.12.1-Template-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://www.rapid7.com/db/modules/exploit/multi/http/confluence_widget_connectorExploit, Third Party Advisory, VDB Entry
https://jira.atlassian.com/browse/CONFSERVER-57974Issue Tracking, Patch, Vendor Advisory
https://www.exploit-db.com/exploits/46731/Exploit, Third Party Advisory, VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-3396US Government Resource

Timeline

Published: Mar 25, 2019
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2019-3396?

How severe is CVE-2019-3396?

CVE-2019-3396 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.91% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2019-3396?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-3396?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST