CVE-2025-49388 is a critical security vulnerability classified under CWE-266 (Incorrect Privilege Assignment) affecting the Miraculous Core Plugin developed by kamleshyadav. This vulnerability allows an attacker to escalate privileges due to improper assignment or enforcement of access controls within the plugin. Specifically, versions up to 2.0.7 are affected, though the exact range is not fully specified ('n/a' is listed). The vulnerability has a CVSS 3.1 base score of 9.8, indicating it is critical with network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction needed (UI:N), and impacts confidentiality, integrity, and availability at a high level (C:H/I:H/A:H). This means an unauthenticated attacker can remotely exploit the vulnerability without user interaction, gaining full control or elevated privileges within the affected system. The lack of available patches at the time of publication (August 28, 2025) increases the urgency for mitigation. The vulnerability likely stems from flawed access control logic or misconfigured permission settings in the plugin's code, allowing unauthorized users to perform actions reserved for higher privilege levels. Although no known exploits are reported in the wild yet, the critical severity and ease of exploitation make this a high-risk threat. The Miraculous Core Plugin is presumably used in web applications or content management systems, where privilege escalation can lead to full system compromise, data breaches, or service disruption.

For European organizations using the Miraculous Core Plugin, this vulnerability poses a severe risk. Successful exploitation could lead to unauthorized access to sensitive data, full system compromise, and disruption of business operations. Given the plugin’s role in managing core functionalities, attackers could manipulate content, inject malicious code, or pivot to other internal systems. This could result in data breaches violating GDPR regulations, leading to legal penalties and reputational damage. Critical infrastructure or sectors such as finance, healthcare, and government agencies using this plugin are particularly vulnerable due to the high impact on confidentiality, integrity, and availability. The ease of exploitation without authentication or user interaction increases the likelihood of automated attacks or widespread exploitation campaigns targeting European entities. Additionally, the absence of patches means organizations must rely on alternative mitigations, increasing operational complexity and risk exposure.

1. Immediate risk reduction should involve disabling or uninstalling the Miraculous Core Plugin until a vendor patch is available. 2. Implement strict network-level access controls to limit exposure of systems running the plugin, including firewall rules restricting inbound traffic to trusted IPs. 3. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious privilege escalation attempts targeting the plugin. 4. Conduct thorough audits of user permissions and roles within affected systems to ensure no excessive privileges are granted inadvertently. 5. Monitor logs and network traffic for anomalous activities indicative of exploitation attempts, such as unusual privilege changes or unauthorized access patterns. 6. Prepare for rapid deployment of vendor patches once released by maintaining an up-to-date inventory of affected systems and establishing a patch management process. 7. Educate system administrators and security teams about the vulnerability specifics to enhance detection and response capabilities. 8. Consider deploying application-layer sandboxing or isolation techniques to limit the impact of a potential compromise within the plugin environment.