CVE-2026-71966

CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated command injection vulnerability in the remote backup transfer feature that allows authenticated attackers to execute arbitrary OS commands by controlling a remote server's API response. Attackers can inject malicious commands through a crafted directory name in the remote server's API response, which bypasses security middleware validation and is passed unsanitized to the OS command execution function.

CVSS v4.0

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

2.08% chance of exploitation in the next 30 days, 80th percentile

Published

2026-08-10

Updated

2026-08-14

Proof-of-concept exploits (1)

• https://themcsam.github.io/posts/cyberpanel-2.4.3-vulnerabilties/

References

• CVE Record
• NVD entry

Related

• CVE-2026-71965
• CVE-2026-71969
• CVE-2026-71964
• CVE-2026-7199
• CVE-2026-71962
• CVE-2026-7200