CVE-2026-54090

File Browser · File Browser

A critical vulnerability in the File Browser interface allows for potential unauthorized file manipulation and system access within the defined directory structure.

Executive summary

A severe vulnerability in the File Browser interface could allow an attacker to bypass intended restrictions, leading to unauthorized file system operations and potential system compromise.

Vulnerability

The vulnerability involves improper access control or input validation within the file management interface. Depending on the specific implementation, this may allow an authenticated user to perform unauthorized file operations such as deletion, renaming, or arbitrary file uploads.

Business impact

Successful exploitation poses a critical threat to data integrity and system availability, as an attacker could overwrite, delete, or exfiltrate sensitive files hosted on the server. The CVSS score of 8.7 underscores the high impact of this vulnerability, potentially resulting in full administrative control over the file environment if left unpatched.

Remediation

Immediate Action: Update the File Browser installation to the latest version provided by the vendor to ensure all access control flaws are addressed.

Proactive Monitoring: Audit file system logs and application audit trails for suspicious file modification or deletion events that deviate from standard administrative patterns.

Compensating Controls: Restrict access to the File Browser interface via network-level controls such as VPNs or IP whitelisting to ensure only authorized personnel can access the file management interface.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Organizations utilizing File Browser must treat this as a high-priority update. Administrators should verify the integrity of their file system immediately following the patch and ensure that the principle of least privilege is applied to all accounts with access to the interface.