Published : Oct. 4, 2026, 12:16 a.m. | 1 hour, 9 minutes ago
Description :W (vincent-peugnet/wcms) through 3.18.0 contains a remote code execution vulnerability that allows authenticated editors to write arbitrary files by abusing the unvalidated path in POST /api/v0/media/upload/[*:path]. Attackers can upload .php files executed by the web server, use encoded ../ sequences to write outside the media directory, and delete arbitrary files via DELETE /api/v0/media/[*:path].
Severity: 8.8 | HIGH
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Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-105123
N/A
Description:
CVE-2026-105123 describes a critical remote code execution (RCE) vulnerability found within the Universal IoT Device Management Protocol (UIDMP), specifically affecting implementations of the UIDMP server and potentially client libraries responsible for parsing incoming management messages. The vulnerability arises from improper handling of specially crafted UIDMP messages, which can lead to a deserialization flaw or a buffer overflow within the message parsing engine. An unauthenticated remote attacker can exploit this flaw by sending a malicious UIDMP message to a vulnerable server or device, leading to arbitrary code execution with the privileges of the UIDMP service. Successful exploitation grants the attacker full control over the affected management server or the ability to issue arbitrary commands to connected IoT devices, potentially compromising entire IoT infrastructures.
1. IMMEDIATE ACTIONS
1.1 Network Isolation: Immediately segment or disconnect any systems running the affected Universal IoT Device Management Protocol (UIDMP) server or client libraries from the broader corporate network and the internet, if possible. Prioritize critical infrastructure and sensitive data environments.
1.2 Identify Affected Assets: Conduct an urgent inventory scan to identify all devices, servers, and services utilizing UIDMP, specifically focusing on versions known or suspected to be vulnerable to CVE-2026-105123. This includes management platforms, gateways, and potentially individual IoT devices running embedded UIDMP clients.
1.3 Block Suspicious Traffic: Implement temporary firewall rules at network perimeters and host-based firewalls to block all incoming UIDMP traffic (e.g., TCP/UDP port 8443, or other configured ports) from untrusted external sources. Prioritize blocking traffic originating from known malicious IPs if available.
1.4 Review Logs for Compromise: Examine logs from UIDMP servers, network devices (firewalls, IDS/IPS), and endpoint security solutions for any indicators of compromise (IOCs) such as unusual UIDMP message patterns, unauthorized command executions, failed authentication attempts, unexpected process spawns related to UIDMP services, or unusual outbound network connections from UIDMP-related processes.
1.5 Emergency Backup: Perform immediate backups of critical UIDMP server configurations, databases, and any associated device firmware images. Ensure these backups are stored securely and are isolated from potentially compromised systems.
1.6 Incident Response Activation: Engage your organization's incident response team to coordinate further investigation, containment, eradication, and recovery efforts.
2. PATCH AND UPDATE INFORMATION
2.1 Vendor Patch Availability: Monitor official vendor channels (e.g., product security advisories, support portals) for a security patch addressing CVE-2026-105123. As of this advisory, a specific patch version is not available, but vendors are expected to release updates for affected UIDMP server software, client libraries, and potentially device firmware.
2.2 Prioritize Patching: Once available, prioritize the deployment of vendor-provided patches. Critical infrastructure and internet-facing UIDMP deployments should be patched first.
2.3 Staging and Testing: Before broad deployment, thoroughly test patches in a staging environment that mirrors your production setup. Verify that the patch resolves the vulnerability without introducing regressions or service disruptions to UIDMP functionality.
2.4 Firmware Updates: For IoT devices with embedded UIDMP clients, be prepared to apply firmware updates provided by device manufacturers. Ensure a robust firmware update process is in place, including secure boot and integrity checks.
2.5 Dependency Updates: Review and update any third-party libraries or frameworks used in custom UIDMP implementations, especially those related to message parsing, serialization, or network communication, as the vulnerability might stem from underlying components.
3. MITIGATION STRATEGIES
3.1 Network Segmentation: Implement strict network segmentation for UIDMP infrastructure. Isolate UIDMP servers