Atlassian · Crowd Data Center/Server · CVE-2023-22521
**Name of the Vulnerable Software and Affected Versions**
Crowd Data Center and Server version 3.4.6
Crowd Data Center and Server versions prior to 5.1.6
Crowd Data Center and Server versions prior to 5.2.1
**Description**
This issue allows an authenticated attacker to execute arbitrary code, which has a high impact on confidentiality, integrity, and availability, and requires no user interaction. The vulnerability was discovered by m1sn0w and reported via the Bug Bounty program.
**Recommendations**
For Crowd Data Center and Server 3.4, upgrade to a release greater than or equal to 5.1.6.
For Crowd Data Center and Server 5.2, upgrade to a release greater than or equal to 5.2.1.
If you are unable to upgrade to the latest version, consider upgrading your instance to one of the specified supported fixed versions.