EUVD-2025-8859

Comprehensive Technical Analysis of EUVD-2025-8859

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in EUVD-2025-8859 affects the website scratch-coding-hut.github.io, specifically in versions 1.0-beta3 and earlier. The issue allows an attacker to log in to any account by manipulating the username field in the login link. This vulnerability is severe due to its potential to compromise user accounts, leading to unauthorized access and potential data breaches.

Base Score: 9.0 Base Score Version: 4.0 Base Score Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

The CVSS score of 9.0 indicates a critical vulnerability. The vector string highlights several key factors:

• AV:N (Network Vector): The vulnerability is exploitable over the network.
• AC:H (High Complexity): Exploiting the vulnerability requires specific conditions or knowledge.
• AT:P (Physical Attack Vector): The attack requires physical interaction or user intervention.
• PR:N (No Privileges Required): No special privileges are needed to exploit the vulnerability.
• UI:P (User Interaction Required): The attack requires user interaction.
• VC:H, VI:H, VA:H (High Confidentiality, Integrity, and Availability Impact): The vulnerability has a high impact on confidentiality, integrity, and availability.
• SC:H, SI:H, SA:H (High Scope Change, Integrity, and Availability Impact): The vulnerability has a high impact on the scope change, integrity, and availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector involves manipulating the username field in the login link to gain unauthorized access to user accounts. An attacker could:

• Intercept or modify the login request to change the username field.
• Use automated scripts to brute-force usernames and gain access to multiple accounts.
• Exploit the vulnerability to perform account takeovers, leading to further malicious activities such as data exfiltration or unauthorized actions within the compromised accounts.

3. Affected Systems and Software Versions

The vulnerability affects the scratch-coding-hut.github.io website, specifically versions 1.0-beta3 and earlier. Users and administrators of this website should be aware of the risk and take immediate action to mitigate the vulnerability.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following steps are recommended:

• Update to the Latest Version: Ensure that the website is updated to a version that addresses this vulnerability.
• Implement Input Validation: Enhance input validation mechanisms to prevent unauthorized modifications to the username field.
• Monitor for Suspicious Activity: Implement monitoring and logging to detect and respond to any suspicious login attempts.
• User Education: Educate users about the risks of phishing and other social engineering attacks that could exploit this vulnerability.
• Multi-Factor Authentication (MFA): Implement MFA to add an additional layer of security to the login process.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using the scratch-coding-hut.github.io website. Unauthorized access to user accounts can lead to data breaches, financial loss, and reputational damage. The high CVSS score underscores the need for immediate attention and remediation to prevent widespread exploitation.

6. Technical Details for Security Professionals

References:

• GitHub Security Advisory
• GitHub Issue Tracker

Aliases:

• CVE-2025-31122

Assigner:

• GitHub_M

EPSS:

• N/A

ENISA ID Product:

• Product: Scratch-Coding-Hut
• Product Version: ≤ 1.0-beta3

ENISA ID Vendor:

• Vendor: Scratch-Coding-Hut

Technical Steps for Remediation:

1. Identify Affected Systems: Conduct a thorough audit to identify all instances of the scratch-coding-hut.github.io website running versions 1.0-beta3 and earlier.
2. Patch Management: Apply the latest patches and updates provided by the vendor to mitigate the vulnerability.
3. Code Review: Perform a detailed code review to ensure that input validation and authentication mechanisms are robust and secure.
4. Security Testing: Conduct penetration testing and vulnerability assessments to identify and address any additional security weaknesses.
5. Incident Response: Develop and implement an incident response plan to quickly detect and respond to any attempts to exploit this vulnerability.

By following these steps, organizations can significantly reduce the risk associated with EUVD-2025-8859 and enhance their overall cybersecurity posture.