CVE-2019-3396
Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.91% probability · 100th percentile
- Public exploits
- 2 in Exploit-DB · verified · first 19 April 2019
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022 · used in ransomware campaigns
- Weakness
- CWE-22
- Affected
- atlassian/confluence server
- Source
- security@atlassian.com
EPSS 99.9% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-3396
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.