CVE-2025-61913

Comprehensive Technical Analysis of CVE-2025-61913

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-61913

Description: Flowise, a drag & drop user interface for building customized large language model flows, contains a critical vulnerability in versions prior to 3.0.8. The WriteFileTool and ReadFileTool components do not restrict file path access, allowing authenticated attackers to read and write arbitrary files to any path in the file system. This can potentially lead to remote command execution.

CVSS Score: 9.9

Severity Evaluation:

• Critical: The CVSS score of 9.9 indicates a critical vulnerability. The ability to read and write arbitrary files can lead to significant security breaches, including data exfiltration, system compromise, and remote command execution.
• Impact: The vulnerability can result in complete system compromise, data loss, and unauthorized access to sensitive information.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Authenticated Users: The vulnerability requires authenticated access, meaning an attacker must have valid credentials to exploit it.
• File Path Manipulation: Attackers can manipulate file paths to read or write to any location on the file system.

Exploitation Methods:

• Reading Sensitive Files: Attackers can read sensitive configuration files, credentials, or other critical data.
• Writing Malicious Files: Attackers can write malicious scripts or binaries to key system directories, leading to remote command execution.
• Data Exfiltration: Sensitive data can be exfiltrated by reading files and sending them to an external server.
• System Compromise: By writing to system directories, attackers can inject malicious code that can be executed, leading to full system compromise.

3. Affected Systems and Software Versions

Affected Software:

• Flowise versions prior to 3.0.8

Affected Systems:

• Any system running the vulnerable versions of Flowise, including servers, workstations, and cloud instances.

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Immediately upgrade to Flowise version 3.0.8 or later, which includes the fix for this vulnerability.
• Access Control: Restrict access to the Flowise interface to trusted users only.
• Monitoring: Implement monitoring and logging to detect any unusual file access patterns.

Long-Term Strategies:

• Regular Updates: Ensure that all software, including Flowise, is regularly updated to the latest versions.
• Least Privilege: Apply the principle of least privilege to limit the permissions of users and services.
• Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate potential risks.

5. Impact on Cybersecurity Landscape

Broader Implications:

• Supply Chain Risks: Vulnerabilities in widely-used tools like Flowise can impact the entire supply chain, affecting multiple organizations and industries.
• Increased Awareness: High-profile vulnerabilities like this one highlight the importance of regular updates and proactive security measures.
• Regulatory Compliance: Organizations must ensure compliance with regulatory requirements by promptly addressing critical vulnerabilities.

6. Technical Details for Security Professionals

Vulnerability Details:

• Components Affected: WriteFileTool and ReadFileTool
• Root Cause: Lack of file path restrictions allows arbitrary file access.
• Exploitation: Authenticated users can manipulate file paths to read or write to any location on the file system.

Detection and Response:

• Log Analysis: Monitor logs for unusual file access patterns, especially from authenticated users.
• Intrusion Detection: Implement intrusion detection systems (IDS) to detect and alert on suspicious activities.
• Incident Response: Have an incident response plan in place to quickly address any detected exploitation attempts.

References:

• GitHub Commit
• Flowise Release 3.0.8
• GHSA Advisory
• Additional GHSA Advisory

By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risks associated with CVE-2025-61913 and enhance their overall cybersecurity posture.