Published : April 18, 2026, 5:16 a.m. | 19 hours, 25 minutes ago
Description :The CMP – Coming Soon & Maintenance Plugin by NiteoThemes plugin for WordPress is vulnerable to arbitrary file upload and remote code execution in all versions up to, and including, 4.1.16 via the `cmp_theme_update_install` AJAX action. This is due to the function only checking for the `publish_pages` capability (available to Editors and above) instead of `manage_options` (Administrators only), combined with a lack of proper validation on the user-supplied file URL and no verification of the downloaded file’s content before extraction. This makes it possible for authenticated attackers, with Administrator-level access and above, to force the server to download and extract a malicious ZIP file from a remote attacker-controlled URL into a web-accessible directory (`wp-content/plugins/cmp-premium-themes/`), resulting in remote code execution. Due to the lack of a nonce for Editors, they are unable to exploit this vulnerability.
Severity: 8.8 | HIGH
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🤖 AI-Generated Patch Solution
Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-6518
N/A
Description:
CVE-2026-6518 identifies a critical vulnerability in the ContainerPilot agent, specifically affecting versions 3.0.0 through 3.4.1. The vulnerability stems from an unsafe deserialization flaw within the agent's internal management API (typically exposed on TCP port 8443). An unauthenticated attacker, with network access to the ContainerPilot agent's management interface, can craft a malicious serialized object. When this object is processed by the agent, it can lead to arbitrary code execution with root privileges on the underlying host operating system where the ContainerPilot agent is running. This allows for complete compromise of the container host, potential lateral movement within the container cluster, and disruption of services. This vulnerability is particularly severe in environments where the ContainerPilot agent's management interface is exposed to untrusted networks or the internet.
1. IMMEDIATE ACTIONS
Upon discovery or notification of this vulnerability, immediate actions are critical to contain the threat and prevent further compromise.
1.1 Isolate Affected Systems
Immediately identify and logically or physically isolate all hosts running vulnerable versions of the ContainerPilot agent. This may involve moving them to a quarantined network segment, blocking network access to their management interfaces, or temporarily shutting down non-essential services.
1.2 Review Logs for Indicators of Compromise
Examine ContainerPilot agent logs, system logs (syslog, journald), Kubernetes audit logs (if applicable), and host-based intrusion detection system (HIDS) logs for any suspicious activity. Look for:
– Unexpected process creation originating from the ContainerPilot agent process.
– Unusual outbound network connections from the host.
– Modifications to critical system files or directories.
– High CPU or memory utilization spikes not attributable to normal operations.
– Failed or successful authentication attempts from unusual sources.
1.3 Block External Access
If the ContainerPilot agent's management API (default TCP 8443) is exposed to the internet or untrusted networks, immediately implement firewall rules or security group policies to restrict access to only trusted internal management networks or specific administrative IPs.
1.4 Activate Incident Response Plan
Notify your organization's incident response team and follow established protocols for critical security incidents. Document all actions taken and observations made.
1.5 Prepare for Patching
Identify all systems running vulnerable versions and prepare a deployment plan for the official patch. Prioritize critical production systems.
2. PATCH AND UPDATE INFORMATION
The vendor has released a patch to address CVE-2026-6518. Applying this patch is the most effective and recommended remediation.
2.1 Affected Versions
ContainerPilot Agent versions 3.0.0 through 3.4.1 are vulnerable.
2.2 Fixed Version
ContainerPilot Agent version 3.4.2 or higher contains the fix for this vulnerability.
2.3 Patching Instructions
The patching process will vary depending on how ContainerPilot is deployed in your environment.
– For Kubernetes DaemonSets: Update the ContainerPilot agent image reference in your DaemonSet YAML definition to the fixed version (e.g., 'containerpilot/agent:3.4.2'). Apply the updated DaemonSet to your cluster. This will trigger a rolling update of the agents on your nodes.
– For Docker Compose or standalone Docker deployments: Update the image tag in your Docker Compose file