CVE-2025-2470

Comprehensive Technical Analysis of CVE-2025-2470

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-2470 CVSS Score: 9.8

The vulnerability in the Service Finder Bookings plugin for WordPress, specifically in versions up to and including 5.1, allows for privilege escalation. This vulnerability is rated with a CVSS score of 9.8, indicating a critical severity level. The high score is due to the potential for unauthenticated attackers to gain administrative access, which can lead to complete compromise of the affected WordPress site.

2. Potential Attack Vectors and Exploitation Methods

The vulnerability arises from a lack of proper user role restrictions in the nsl_registration_store_extra_input function. This function is responsible for handling user registration data, including roles. An attacker can exploit this by:

1. Social Login Exploitation: The attacker uses the Nextend Social Login plugin to register a new account.
2. Role Manipulation: During the registration process, the attacker manipulates the user role to assign themselves an administrative role.
3. Unauthenticated Access: Since the vulnerability allows unauthenticated users to perform this action, the attacker does not need any prior access to the system.

3. Affected Systems and Software Versions

• WordPress Plugin: Service Finder Bookings plugin versions up to and including 5.1.
• WordPress Theme: Service Finder - Directory and Job Board WordPress Theme.
• Dependent Plugin: Nextend Social Login plugin must be installed and configured for the vulnerability to be exploited.

4. Recommended Mitigation Strategies

1. Immediate Patching: Upgrade the Service Finder Bookings plugin to a version higher than 5.1, where the vulnerability has been addressed.
2. Role Restrictions: Implement strict role-based access controls and validate user roles during registration processes.
3. Monitoring and Logging: Enable detailed logging and monitoring for user registration activities to detect and respond to suspicious behavior.
4. Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.
5. Multi-Factor Authentication (MFA): Enforce MFA for administrative accounts to add an additional layer of security.

5. Impact on Cybersecurity Landscape

The discovery of CVE-2025-2470 highlights the importance of secure coding practices and the need for continuous monitoring and updating of plugins and themes in the WordPress ecosystem. This vulnerability underscores the potential risks associated with third-party plugins and the necessity for robust security measures to protect against privilege escalation attacks.

6. Technical Details for Security Professionals

Vulnerability Details:

• Function: nsl_registration_store_extra_input
• Issue: Lack of user role validation during registration.
• Exploitation: Unauthenticated attackers can manipulate the user role parameter to gain administrative access.

Exploitation Steps:

1. Identify Target: Locate a WordPress site using the vulnerable Service Finder Bookings plugin and the Nextend Social Login plugin.
2. Initiate Registration: Use the social login feature to start the registration process.
3. Manipulate Role: During registration, modify the user role parameter to 'administrator'.
4. Complete Registration: Finalize the registration process, gaining administrative access to the site.

Detection and Response:

• Log Analysis: Review registration logs for any anomalies or unexpected role assignments.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious registration activities.
• Incident Response: Have a predefined incident response plan to quickly address and mitigate any detected exploitation attempts.

Conclusion: CVE-2025-2470 represents a critical vulnerability that can be exploited to gain unauthorized administrative access to WordPress sites. Immediate patching, strict access controls, and continuous monitoring are essential to mitigate this risk. Security professionals should prioritize the implementation of these measures to protect against similar vulnerabilities in the future.