CyberPanel 1.9.1 contains a path traversal vulnerability in the readFileContents method of the /filemanager/controller endpoint. An authenticated remote attacker with ownership of any configured domain can supply an arbitrary absolute or out-of-scope path in the fileName JSON property. Because authorization validates only domainName and does not canonicalize or restrict fileName to that domain's home directory, the application returns the contents of files readable by the CyberPanel execution identity.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
n/a:n/a
References 5
https://github.com/lichoin/TraceLoom/blob/main/CVEs/CVE-2026-79304.md
cve@mitre.org
https://github.com/usmannasir/cyberpanel/blob/v1.9.1/CyberCP/secMiddleware.py#L…
cve@mitre.org
https://github.com/usmannasir/cyberpanel/blob/v1.9.1/filemanager/filemanager.py…
cve@mitre.org
https://github.com/usmannasir/cyberpanel/blob/v1.9.1/filemanager/filemanager.py…
cve@mitre.org
https://github.com/usmannasir/cyberpanel/blob/v1.9.1/filemanager/views.py#L98-L…
cve@mitre.org