CVE-2025-48187

Comprehensive Technical Analysis of CVE-2025-48187

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-48187 CVSS Score: 9.1

The vulnerability in RAGFlow through version 0.18.1 allows for account takeover due to the lack of rate limiting on email verification codes, which are six digits long. This makes it possible to conduct successful brute-force attacks against these codes, enabling arbitrary account registration, login, and password reset.

Severity Evaluation:

• CVSS Score: 9.1 (Critical)
• Impact: High
• Exploitability: High

The high CVSS score indicates a critical vulnerability that can be easily exploited with significant impact on the confidentiality, integrity, and availability of user accounts.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Brute-Force Attack: An attacker can systematically try all possible combinations of the six-digit verification code to gain unauthorized access to user accounts.
2. Automated Scripts: Attackers can use automated scripts to rapidly attempt multiple verification codes, increasing the likelihood of a successful guess.

Exploitation Methods:

1. Account Registration: An attacker can register new accounts by brute-forcing the verification codes sent to the email addresses of potential victims.
2. Login: An attacker can gain access to existing accounts by brute-forcing the verification codes used for login.
3. Password Reset: An attacker can reset passwords by brute-forcing the verification codes sent during the password reset process.

3. Affected Systems and Software Versions

Affected Software:

• RAGFlow versions up to and including 0.18.1

Affected Systems:

• Any system running the affected versions of RAGFlow, including but not limited to:
  • Web applications
  • Mobile applications
  • Desktop applications

4. Recommended Mitigation Strategies

1. Rate Limiting: Implement rate limiting on email verification code attempts to prevent brute-force attacks.
2. Increase Code Complexity: Use longer and more complex verification codes to reduce the feasibility of brute-force attacks.
3. Monitoring and Alerts: Implement monitoring and alerting mechanisms to detect and respond to suspicious activity related to verification code attempts.
4. Patch Management: Ensure that all systems are updated to the latest version of RAGFlow that addresses this vulnerability.
5. User Education: Educate users about the importance of strong passwords and the risks associated with account takeover attempts.

5. Impact on Cybersecurity Landscape

The vulnerability highlights the importance of robust authentication mechanisms and the need for rate limiting to prevent brute-force attacks. It underscores the potential risks associated with weak verification processes and the critical role of timely patch management in maintaining security.

6. Technical Details for Security Professionals

Vulnerability Details:

• Type: Authentication Bypass
• Cause: Lack of rate limiting on six-digit email verification codes
• Exploitability: High due to the simplicity of the verification code and the absence of rate limiting

Detection and Response:

1. Log Analysis: Review logs for repeated failed attempts to enter verification codes, which may indicate a brute-force attack.
2. Anomaly Detection: Use anomaly detection tools to identify unusual patterns in verification code attempts.
3. Incident Response: Develop an incident response plan that includes steps to mitigate the impact of a successful account takeover, such as account lockdown and user notification.

Patch Information:

• Patch Availability: A patch is available in the main branch of the RAGFlow GitHub repository.
• Patch URL: RAGFlow GitHub Commits

Exploit Information:

• Exploit Details: Detailed information on how to exploit this vulnerability can be found at the following URLs:
  • Exploit 1
  • Exploit 2

Conclusion: CVE-2025-48187 represents a critical vulnerability that can lead to account takeover through brute-force attacks on email verification codes. Organizations using RAGFlow should prioritize updating to the latest version and implementing additional security measures to mitigate this risk. The cybersecurity community should take note of the importance of rate limiting and robust authentication mechanisms to prevent similar vulnerabilities in the future.