Understanding and Defending Against CVE-2026-84715: Privilege Escalation in FeatherPanel
CVE-2026-84715 is a high-severity vulnerability in FeatherPanel versions before 1.3.7.10, allowing authenticated subusers to escalate privileges by exploiting the SubuserController updateSubuser handler. This vulnerability enables unauthorized access to sensitive data, backups, and server configuration. The CVSS score for this vulnerability is 8.8, indicating a high level of severity.