EUVD-2025-6410

Comprehensive Technical Analysis of EUVD-2025-6410

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-6410 affects the CiyaShop - Multipurpose WooCommerce Theme for WordPress. It is classified as a PHP Object Injection vulnerability, which occurs due to the deserialization of untrusted input in the 'add_ciyashop_wishlist' and 'ciyashop_get_compare' functions. This vulnerability is present in all versions up to and including 4.19.0.

Severity Evaluation:

• Base Score: 9.8 (CVSS:3.1)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The high base score indicates a critical vulnerability. The CVSS vector string highlights the following:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Unchanged (U)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This vulnerability is critical because it allows unauthenticated attackers to inject PHP objects, potentially leading to severe impacts if a Property-Oriented Programming (POP) chain is present.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: Attackers can exploit this vulnerability without needing to authenticate.
• Deserialization of Untrusted Input: The vulnerability arises from the deserialization of untrusted input in specific functions.

Exploitation Methods:

• PHP Object Injection: Attackers can inject malicious PHP objects through the 'add_ciyashop_wishlist' and 'ciyashop_get_compare' functions.
• POP Chain Utilization: If another plugin or theme with a POP chain is installed, attackers can leverage this to perform actions such as deleting arbitrary files, retrieving sensitive data, or executing arbitrary code.

3. Affected Systems and Software Versions

Affected Software:

• CiyaShop - Multipurpose WooCommerce Theme for WordPress
• Versions: All versions up to and including 4.19.0

Affected Systems:

• Any WordPress site using the CiyaShop theme within the affected version range.
• Systems with additional plugins or themes that contain a POP chain, which can be leveraged by the attacker.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Theme: Upgrade to a version higher than 4.19.0 if available.
• Disable Vulnerable Functions: Temporarily disable the 'add_ciyashop_wishlist' and 'ciyashop_get_compare' functions until a patch is applied.
• Monitor and Audit: Implement continuous monitoring and auditing of the WordPress environment to detect any suspicious activities.

Long-Term Mitigation:

• Regular Updates: Ensure all themes, plugins, and the WordPress core are regularly updated.
• Code Review: Conduct thorough code reviews to identify and mitigate similar vulnerabilities.
• Security Plugins: Use security plugins like Wordfence to detect and block potential exploits.
• Web Application Firewall (WAF): Deploy a WAF to filter out malicious requests.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for e-commerce sites using the CiyaShop theme. Given the widespread use of WordPress and WooCommerce, the potential impact is substantial:

• Data Breaches: Sensitive customer data could be compromised.
• Service Disruption: Attackers could disrupt e-commerce operations, leading to financial losses.
• Reputation Damage: Compromised sites could suffer reputational damage, affecting customer trust.

6. Technical Details for Security Professionals

Vulnerability Details:

• Type: PHP Object Injection
• Functions Affected: 'add_ciyashop_wishlist' and 'ciyashop_get_compare'
• Deserialization Issue: The vulnerability stems from the deserialization of untrusted input, allowing the injection of PHP objects.

Detection and Response:

• Log Analysis: Analyze server logs for unusual activities related to the vulnerable functions.
• Intrusion Detection Systems (IDS): Implement IDS to detect and alert on suspicious activities.
• Incident Response Plan: Develop and maintain an incident response plan to quickly address any detected exploits.

References:

• NVD Entry: CVE-2024-13824
• ThemeForest Changelog: CiyaShop Changelog
• Wordfence Threat Intel: Wordfence Vulnerability Report

By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risk and protect their digital assets effectively.