EUVD-2025-15779

Comprehensive Technical Analysis of EUVD-2025-15779

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-15779 pertains to a Deserialization of Untrusted Data issue in the Chimpstudio Foodbakery Sticky Cart plugin, which allows for Object Injection. This vulnerability is particularly severe due to its high base score of 9.8 according to CVSS 3.1. The base score vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates the following:

• Attack Vector (AV): Network (N) - The vulnerability can be exploited remotely over the network.
• Attack Complexity (AC): Low (L) - The attack does not require special conditions and can be easily executed.
• Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability can lead to a significant breach of confidentiality.
• Integrity (I): High (H) - The vulnerability can lead to a significant breach of integrity.
• Availability (A): High (H) - The vulnerability can lead to a significant breach of availability.

Given these factors, the severity of this vulnerability is critical, necessitating immediate attention and mitigation.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector for this vulnerability is the deserialization of untrusted data, which can lead to Object Injection. An attacker could exploit this vulnerability by:

• Crafting Malicious Input: An attacker can send specially crafted serialized data to the application.
• Object Injection: The deserialization process can be manipulated to inject malicious objects, leading to arbitrary code execution or other malicious activities.
• Remote Code Execution (RCE): If the injected objects can execute code, the attacker can gain control over the server, leading to data breaches, system compromise, and further attacks.

3. Affected Systems and Software Versions

The vulnerability affects the Foodbakery Sticky Cart plugin from Chimpstudio. Specifically, it impacts all versions from n/a through 3.2. This means that any system running this plugin within the specified version range is at risk.

4. Recommended Mitigation Strategies

To mitigate this vulnerability, the following steps should be taken:

• Immediate Patching: Upgrade to a patched version of the Foodbakery Sticky Cart plugin if available.
• Input Validation: Implement strict input validation and sanitization to ensure that only trusted data is deserialized.
• Serialization Libraries: Use secure serialization libraries that do not allow object injection.
• Monitoring and Logging: Enhance monitoring and logging to detect any suspicious activities related to deserialization processes.
• Network Security: Implement network security measures such as firewalls and intrusion detection systems to prevent unauthorized access.

5. Impact on European Cybersecurity Landscape

The impact of this vulnerability on the European cybersecurity landscape is significant due to the widespread use of WordPress plugins in various industries. The potential for remote code execution and data breaches can lead to:

• Data Theft: Sensitive information can be stolen, leading to financial and reputational damage.
• System Compromise: Attackers can gain control over affected systems, leading to further attacks and disruptions.
• Compliance Issues: Organizations may face compliance issues with regulations such as GDPR if sensitive data is compromised.

6. Technical Details for Security Professionals

For security professionals, the following technical details are crucial:

• Deserialization Process: Understand the deserialization process in the affected plugin and identify points where untrusted data is handled.
• Code Review: Conduct a thorough code review to identify and mitigate any other potential deserialization vulnerabilities.
• Security Tools: Use security tools such as static analysis, dynamic analysis, and penetration testing to detect and mitigate similar vulnerabilities.
• Incident Response: Prepare an incident response plan to quickly address any exploitation attempts and minimize the impact.

Conclusion

The Deserialization of Untrusted Data vulnerability in the Chimpstudio Foodbakery Sticky Cart plugin is a critical issue that requires immediate attention. By understanding the attack vectors, affected systems, and recommended mitigation strategies, cybersecurity professionals can effectively address this vulnerability and protect their organizations from potential attacks. The impact on the European cybersecurity landscape underscores the importance of proactive measures and continuous monitoring to ensure the security and integrity of digital assets.