EUVD-2024-49070

Comprehensive Technical Analysis of EUVD-2024-49070

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the MultiVendorX plugin for WordPress, specifically in versions up to and including 4.2.0, is severe. The insufficient capability checks in the update_item_permissions_check and create_item_permissions_check functions allow unauthenticated attackers to perform privilege escalation/de-escalation and account takeover. This vulnerability is rated with a CVSS Base Score of 9.8, indicating a critical severity level.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability can be exploited over the network.
• AC:L (Low Complexity): The attack requires low skill or resources.
• PR:N (No Privileges Required): No authentication is needed to exploit the vulnerability.
• UI:N (No User Interaction): No user interaction is required.
• S:U (Unchanged): The scope of the vulnerability does not change.
• C:H (High Confidentiality Impact): Complete compromise of confidentiality.
• I:H (High Integrity Impact): Complete compromise of integrity.
• A:H (High Availability Impact): Complete compromise of availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: Attackers can exploit the vulnerability without needing any credentials.
• Privilege Escalation: Attackers can change the password of any user with the vendor role.
• Account Creation: Attackers can create new users with the vendor role.
• Privilege De-escalation: Attackers can demote other users, including administrators, to the vendor role.

Exploitation Methods:

• Password Change: By exploiting the update_item_permissions_check function, attackers can change the password of vendor users.
• User Creation: By exploiting the create_item_permissions_check function, attackers can create new vendor users.
• Role Demotion: Attackers can demote high-privilege users, such as administrators, to the vendor role, effectively reducing their permissions.

3. Affected Systems and Software Versions

Affected Software:

• MultiVendorX – The Ultimate WooCommerce Multivendor Marketplace Solution plugin for WordPress.

Affected Versions:

• All versions up to and including 4.2.0.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Immediately update the MultiVendorX plugin to a version higher than 4.2.0 if available.
• Disable the Plugin: If an update is not available, consider disabling the plugin until a patched version is released.
• Monitor for Suspicious Activity: Implement monitoring to detect any unauthorized changes to user roles or passwords.

Long-Term Actions:

• Regular Updates: Ensure all plugins and WordPress core are regularly updated.
• Access Controls: Implement strict access controls and regularly review user permissions.
• Security Audits: Conduct regular security audits and vulnerability assessments.
• Intrusion Detection: Deploy intrusion detection systems to monitor for unusual activity.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European businesses using the MultiVendorX plugin, particularly those operating e-commerce platforms. The potential for unauthenticated attackers to gain control over vendor accounts and demote administrators can lead to financial loss, data breaches, and reputational damage. This underscores the importance of robust cybersecurity measures and regular updates to mitigate such risks.

6. Technical Details for Security Professionals

Vulnerable Functions:

• update_item_permissions_check
• create_item_permissions_check

Code References:

• Line 705
• Line 641
• Line 382

Additional References:

• Wordfence Threat Intelligence
• WordPress Plugin Repository

EPSS Score:

• The EPSS (Exploit Prediction Scoring System) score of 17 indicates a moderate likelihood of exploitation in the wild.

ENISA IDs:

• Product ID: 71dd2def-a390-3bc5-9fdb-02ca8908c22b
• Vendor ID: e1100feb-ed74-3a8b-88fe-8aaa3aea1aff

Assigner:

• Wordfence

Aliases:

• CVE-2024-8289

Conclusion

The vulnerability in the MultiVendorX plugin is critical and requires immediate attention. Organizations using this plugin should prioritize updating to a patched version and implement robust security measures to mitigate the risk of exploitation. The European cybersecurity landscape must remain vigilant against such threats to protect sensitive data and maintain trust in digital services.