CVE-2019-3396: Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerability
CVE-2019-3396 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2021-11-03
The Widget Connector macro in Atlassian Confluence Server and Data Center contains a server-side template injection vulnerability. Remote attackers can exploit this to achieve path traversal and remote code execution on the affected instance.
Yes. CVE-2019-3396 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2019-3396?
Critical severity, with a CVSS score of 9.8, published 3 November 2021.
Which products and versions are affected?
Atlassian Confluence Server < 6.6.12, 6.7.0 to < 6.12.3, 6.13.0 to < 6.13.3, 6.14.0 to < 6.14.2; Atlassian Confluence Data Center < 6.6.12, 6.7.0 to < 6.12.3, 6.13.0 to < 6.13.3, 6.14.0 to < 6.14.2.
Is there a fix for CVE-2019-3396?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-3396 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2019-3396?
Check whether you run Atlassian Confluence Server or Atlassian Data Server. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Atlassian Confluence Server < 6.6.12, 6.7.0 to < 6.12.3, 6.13.0 to < 6.13.3, 6.14.0 to < 6.14.2
Atlassian Confluence Data Center < 6.6.12, 6.7.0 to < 6.12.3, 6.13.0 to < 6.13.3, 6.14.0 to < 6.14.2
Timeline
2019-03-20: advisory: Initial vendor advisory (CONFSERVER-57974) published
2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog