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How the CVE Works:
CVE-2025-2289 is a critical vulnerability in the Zegen – Church WordPress Theme, affecting all versions up to and including 1.1.9. The issue arises due to missing capability checks on several AJAX endpoints. This oversight allows authenticated attackers with Subscriber-level access or higher to perform unauthorized actions such as importing, exporting, and updating theme options. The vulnerability stems from improper access control, enabling low-privileged users to manipulate critical theme settings, potentially leading to website compromise, data leakage, or defacement. The CVSS 4.0 score reflects its critical severity due to the ease of exploitation and high impact on confidentiality, integrity, and availability.
DailyCVE Form:
Platform: WordPress
Version: 1.1.9 and earlier
Vulnerability: Unauthorized Access
Severity: Critical
Date: 03/14/2025
What Undercode Say:
Exploitation:
1. Exploit Code Example:
add_action('wp_ajax_import_theme_options', 'malicious_import');
function malicious_import() {
// Malicious code to import harmful theme options
update_option('theme_options', 'malicious_data');
}
Attackers can craft malicious AJAX requests to exploit the missing capability checks.
2. Exploit Command:
curl -X POST -d "action=import_theme_options" http://target-site.com/wp-admin/admin-ajax.php
Protection:
1. Patch Application:
- Update the Zegen – Church WordPress Theme to the latest version beyond 1.1.9.
- Apply vendor-provided patches immediately.
2. Temporary Mitigation:
add_filter('wp_ajax_nopriv_import_theme_options', 'deny_access');
function deny_access() {
wp_die('Access denied.');
}
This code snippet denies access to unauthorized AJAX requests.
3. Security Plugins:
- Install Wordfence or iThemes Security to monitor and block suspicious activities.
4. Access Control:
- Restrict Subscriber-level access to critical theme settings.
- Implement role-based access control (RBAC) for AJAX endpoints.
5. Audit Logs:
- Enable logging to monitor AJAX requests and detect exploitation attempts.
tail -f /var/log/apache2/access.log | grep admin-ajax.php
6. Firewall Rules:
- Use a Web Application Firewall (WAF) to block unauthorized AJAX requests.
iptables -A INPUT -p tcp --dport 80 -m string --string "admin-ajax.php" --algo bm -j DROP
7. Code Review:
- Regularly review theme code for missing capability checks and other vulnerabilities.
By following these steps, administrators can mitigate the risk posed by CVE-2025-2289 and secure their WordPress installations.
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-2289
Extra Source Hub:
Undercode
