usmannasir cyberpanel up to 1.9.1 Backup Creation cancelBackupCreation backupCancellationDomain/fileName improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in usmannasir cyberpanel up to 1.9.1. This affects the function cancelBackupCreation of the component Backup Creation Handler. This manipulation of the argument backupCancellationDomain/fileName causes improper authorization. This vulnerability is tracked as CVE-2026-65916. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in usmannasir cyberpanel up to 1.9.1 and classified as problematic. Affected by this vulnerability is the function cancelBackupCreation of the component Backup Creation Handler. The manipulation of the argument backupCancellationDomain/fileName with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-65916 since 07/23/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Applying the patch b1984603f9b0099b39bca46fea176e53b6d4d601 is able to eliminate this problem.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• usmannasir

Name

• cyberpanel

Version

• 1.9.0
• 1.9.1

Website

• Product: https://github.com/usmannasir/cyberpanel/

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion