Atlassian · Confluence · CVE-2021-23259
**Name of the Vulnerable Software and Affected Versions**
Atlassian Confluence versions prior to 7.4.11
Atlassian Confluence versions 7.3.0 through 7.3.6
Atlassian Confluence versions 7.0.0 through 7.0.14
Atlassian Confluence versions 6.13.0 through 6.15.9
**Description**
The issue allows authenticated users with Administrator or Developer roles to execute OS commands by Groovy Script, which uses Groovy lib to render a webpage. The groovy script does not have security restrictions, which will cause attackers to execute arbitrary commands remotely.
**Recommendations**
For versions prior to 7.4.11, update to version 7.4.11 or later.
For versions 7.3.0 through 7.3.6, update to version 7.3.7 or later.
For versions 7.0.0 through 7.0.14, update to version 7.0.15 or later.
For versions 6.13.0 through 6.15.9, update to version 6.15.10 or later.