Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 resulting in limited information disclosure to low privileged users.
https://www.tenable.com/cyber-exposure/a-look-inside-the-ransomware-ecosystem
https://www.tenable.com/cyber-exposure/2020-threat-landscape-retrospective