CVE-2025-66153: 
WordPress vulnerability analysis and mitigation

CVE-2025-66153 is a Missing Authorization (Broken Access Control) vulnerability in the Headinger for Elementor WordPress plugin developed by merkulove. It affects all versions from n/a through 1.1.4 and allows authenticated low-privileged attackers to exploit incorrectly configured access control security levels. The vulnerability was published on December 31, 2025, and assigned a CVSS v3.1 base score of 5.4 (Medium) by Patchstack (Patchstack, Red Hat CVE).

The vulnerability is classified as CWE-862 (Missing Authorization), meaning the plugin fails to properly verify whether an authenticated user has the appropriate permissions before allowing access to certain functionality. An attacker with a low-privileged WordPress account (e.g., subscriber) can send crafted network requests to exploit misconfigured access control checks within the plugin, enabling unauthorized modification or disruption of plugin-controlled data. No user interaction is required, and the attack complexity is low, making it straightforward to exploit once an attacker has any valid WordPress account (Patchstack, Red Hat CVE).

Successful exploitation allows a low-privileged authenticated attacker to modify website content managed by the Headinger for Elementor plugin and potentially cause limited service disruption (availability impact: low). There is no confidentiality impact, meaning sensitive data is not directly exposed. The scope is limited to the affected WordPress installation, with no evidence of lateral movement potential beyond the plugin's functionality (Patchstack).

No public proof-of-concept exploit code or evidence of in-the-wild exploitation has been reported for CVE-2025-66153. The EPSS score is approximately 0.036%, indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Exploitation requires a valid (low-privileged) WordPress account on the target site, which limits opportunistic mass exploitation (Red Hat CVE).

Users should update the Headinger for Elementor plugin to version 1.1.5 or later, which contains the fix for this broken access control issue. Site administrators should audit user accounts for any unexpected low-privileged accounts that may have been created. As a general hardening measure, restrict WordPress user registration to trusted individuals and review plugin permissions regularly (Patchstack, Red Hat CVE).