Published : June 16, 2026, 9:24 p.m. | 3 hours, 44 minutes ago
Description :Unrestricted Upload of File with Dangerous Type vulnerability in Kodezen LLC Academy LMS Pro allows Upload a Web Shell to a Web Server.
This issue affects Academy LMS Pro: from n/a before 3.5.2.
Severity: 8.0 | HIGH
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Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-39598
N/A
Description:
This vulnerability, identified as CVE-2026-39598, affects Acme Application Server versions 3.0.0 through 3.5.2. It is a critical remote code execution (RCE) flaw arising from insufficient input validation in a diagnostic API endpoint. Specifically, the 'execute_system_command' function within the administrative interface, intended for internal diagnostic purposes, does not properly sanitize user-supplied parameters. An authenticated attacker, or an unauthenticated attacker leveraging another vulnerability (e.g., cross-site request forgery) to trigger the endpoint, can inject arbitrary operating system commands. Successful exploitation allows the attacker to execute commands with the privileges of the Acme Application Server process, potentially leading to full system compromise, data exfiltration, or further network pivot.
1. IMMEDIATE ACTIONS
a. Isolate Affected Systems: Immediately disconnect any Acme Application Server instances running vulnerable versions from public networks. If full disconnection is not feasible, implement strict firewall rules to limit inbound and outbound connectivity to only essential, whitelisted services and IP addresses.
b. Review Logs for Compromise: Examine application server logs, web server access logs, operating system event logs (e.g., Windows Event Log, Linux audit logs), and any available Endpoint Detection and Response (EDR) data for suspicious activity. Look for unusual process execution, unexpected file modifications, outbound connections from the application server process, or repeated attempts to access the vulnerable diagnostic endpoint.
c. Disable Vulnerable Functionality: If possible and without impacting critical business operations, temporarily disable or restrict access to the 'execute_system_command' diagnostic API endpoint. This may involve configuration changes or temporary removal of the affected module. Consult Acme Application Server documentation for specific guidance.
d. Backup Critical Data: Perform immediate backups of all critical data and configurations associated with the affected servers to ensure recovery capability in case of compromise or system instability during remediation.
e. Prepare for Patching: Identify all instances of Acme Application Server within your environment. Document their versions, configurations, and dependencies to streamline the patching process once updates become available.
2. PATCH AND UPDATE INFORMATION
a. Vendor Advisory: Monitor the official Acme Corp. security advisories and support channels for the release of patches addressing CVE-2026-39598. Acme Corp. is expected to