Vulnerability Description
FeatherPanel versions before 1.3.7.10 fail to validate permissions in the SubuserController updateSubuser handler, allowing authenticated subusers to modify their own permission records. A subuser with minimal permissions can send a crafted request to grant themselves full server control, enabling unauthorized access to sensitive data, backups, and server configuration.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/MythicalLTD/FeatherPanel
- https://github.com/MythicalLTD/FeatherPanel/blob/376b003aa9685b74153d239d2b3f64a
- https://github.com/MythicalLTD/FeatherPanel/blob/376b003aa9685b74153d239d2b3f64a
- https://github.com/MythicalLTD/FeatherPanel/commit/06ef8dcac471201748516ca743694
- https://github.com/MythicalLTD/FeatherPanel/releases/tag/v1.3.7.10
- https://www.vulncheck.com/advisories/featherpanel-before-1.3.7.10-privilege-esca
FAQ
What is CVE-2026-84715?
CVE-2026-84715 is a vulnerability with a CVSS score of 8.8 (HIGH). FeatherPanel versions before 1.3.7.10 fail to validate permissions in the SubuserController updateSubuser handler, allowing authenticated subusers to modify their own permission records. A subuser wit...
How severe is CVE-2026-84715?
CVE-2026-84715 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-84715?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.