Improper Neutralization of Special Elements in Output Used by a Downstream Component in Jira Software Server - CVE-2019-20409
Published: June 23, 2020 / Updated: August 8, 2020
Vulnerability identifier: #VU34202
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-20409
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The way in which velocity templates were used in Atlassian Jira Server and Data Center prior to version 8.8.0 allowed remote attackers to gain remote code execution if they were able to exploit a server side template injection vulnerability.
Affected software
Jira Software Server
How to mitigate CVE-2019-20409
Install update from vendor's website.
Jira Software Server - update to 8.8.0