CVE-2026-65916

CyberPanel Missing Authorization in cancelBackupCreation Handler

HIGH 7.2EPSS 0.5%

CyberPanel through 1.9.1, fixed in commit b198460, contains a missing authorization vulnerability in the cancelBackupCreation handler that allows authenticated users to kill, delete, and corrupt other tenants' backups. Attackers can send crafted POST requests with arbitrary backupCancellationDomain and fileName parameters to terminate backup processes, delete backup archives, corrupt backup status files, and remove database records belonging to other tenants.

Affected: usmannasir · cyberpanel
CVSS v4.0 VULNCHECK: 7.2 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 VULNCHECK: 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS: 0.49% chance of exploitation in the next 30 days, 41st percentile
Published: 2026-07-23
Updated: 2026-07-28

Proof-of-concept exploits (1)

usmannasir/cyberpanel/issues/18292026★ · 2026-10-16

CVE-2026-65916

Proof-of-concept exploits (1)

References

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