EUVD-2025-30594

Comprehensive Technical Analysis of EUVD-2025-30594

1. Vulnerability Assessment and Severity Evaluation

The EUVD entry EUVD-2025-30594 describes a Cross-Site Request Forgery (CSRF) vulnerability in the yonisink Custom Post Type Images plugin, which allows for Code Injection. This vulnerability is particularly severe due to its potential for high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). The CVSS Base Score of 9.6 indicates a critical vulnerability. The vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal complexity.
• Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
• User Interaction (UI): Required (R) - User interaction is required for the attack to succeed.
• Scope (S): Changed (C) - The vulnerability affects a different security scope.
• Confidentiality (C): High (H) - There is a high impact on confidentiality.
• Integrity (I): High (H) - There is a high impact on integrity.
• Availability (A): High (H) - There is a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector for this vulnerability is CSRF, where an attacker tricks a user into performing actions on a web application in which they are authenticated. The attacker can exploit this vulnerability to inject malicious code, leading to various types of attacks such as:

• Data Exfiltration: Unauthorized access to sensitive information.
• Data Manipulation: Altering or deleting critical data.
• Service Disruption: Causing the application to become unavailable.

Exploitation methods may include:

• Phishing Emails: Sending crafted emails to users with links that perform unauthorized actions.
• Malicious Websites: Hosting websites that perform CSRF attacks when visited by authenticated users.
• Social Engineering: Tricking users into performing actions that exploit the vulnerability.

3. Affected Systems and Software Versions

The vulnerability affects the yonisink Custom Post Type Images plugin for WordPress, specifically versions from n/a through 0.5. Any WordPress installation using this plugin within the specified version range is at risk.

4. Recommended Mitigation Strategies

To mitigate this vulnerability, the following strategies are recommended:

• Update the Plugin: Ensure that the Custom Post Type Images plugin is updated to a version that addresses the vulnerability.
• Implement CSRF Protection: Use anti-CSRF tokens to validate requests and prevent unauthorized actions.
• User Education: Educate users about the risks of phishing and social engineering attacks.
• Network Security: Implement network security measures such as firewalls and intrusion detection systems to monitor and block suspicious activity.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.

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 and its plugins. Organizations and individuals using the affected plugin are at risk of data breaches, service disruptions, and other cybersecurity incidents. This underscores the importance of timely patching and proactive security measures to protect against such vulnerabilities.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Identification: The vulnerability is identified by EUVD-2025-30594, CVE-2025-58255, and GHSA-29vr-h58w-hvj7.
• References: Additional information can be found at:
  • NVD CVE-2025-58255
  • Patchstack Vulnerability Report
• Assigner: The vulnerability was assigned by Patchstack.
• ENISA ID: The ENISA ID for the product is 074a8190-e1b6-3067-95e0-848c5c7a0a47 and for the vendor is 74dc9013-346e-36f2-8bb2-f9fa582131b6.

In conclusion, the CSRF vulnerability in the yonisink Custom Post Type Images plugin poses a critical risk to affected systems. Immediate action is required to update the plugin and implement additional security measures to mitigate the risk. Regular monitoring and proactive security practices are essential to safeguard against such vulnerabilities in the future.