CVE-2026-28785

Comprehensive Technical Analysis of CVE-2026-28785

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2026-28785 CVSS Score: 9.8

The vulnerability in Ghostfolio, an open-source wealth management software, allows an attacker to bypass symbol validation and execute arbitrary SQL commands via the getHistorical() method. This SQL injection vulnerability can lead to unauthorized access, modification, or deletion of sensitive financial data for all users in the database.

Severity Evaluation:

• CVSS Base Score: 9.8 (Critical)
• Impact: High
• Exploitability: High

The high CVSS score indicates a critical vulnerability due to the potential for significant data breaches and financial loss. The ease of exploitation and the severity of potential impacts make this a high-priority issue for immediate remediation.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• SQL Injection: The primary attack vector is SQL injection, where an attacker can inject malicious SQL queries through the getHistorical() method.
• Symbol Validation Bypass: The attacker can bypass the symbol validation mechanism, allowing them to insert arbitrary SQL commands.

Exploitation Methods:

• Direct SQL Injection: An attacker can craft a specially designed input to the getHistorical() method that includes SQL commands.
• Automated Scripts: Attackers may use automated scripts to exploit the vulnerability, making it easier to execute complex SQL commands and exfiltrate data.

3. Affected Systems and Software Versions

Affected Software:

• Ghostfolio versions prior to 2.244.0

Affected Systems:

• Any system running the vulnerable versions of Ghostfolio, including but not limited to:
  • Financial institutions
  • Personal finance management platforms
  • Wealth management services

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade to Version 2.244.0: Immediately upgrade to Ghostfolio version 2.244.0 or later, which includes the patch for this vulnerability.
• Disable Access: Temporarily disable access to the getHistorical() method until the upgrade is complete.

Long-Term Mitigation:

• Input Validation: Implement robust input validation and sanitization mechanisms to prevent SQL injection.
• Parameterized Queries: Use parameterized queries or prepared statements to ensure that SQL commands are executed safely.
• Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.
• Monitoring: Implement monitoring and alerting systems to detect and respond to suspicious activities.

5. Impact on Cybersecurity Landscape

Immediate Impact:

• Data Breaches: Potential for significant data breaches, including the exposure of sensitive financial information.
• Financial Loss: Financial institutions and users may suffer financial losses due to unauthorized transactions or data manipulation.

Long-Term Impact:

• Reputation Damage: Organizations using Ghostfolio may face reputational damage due to data breaches.
• Regulatory Compliance: Failure to address this vulnerability may result in non-compliance with regulatory requirements, leading to legal consequences.

6. Technical Details for Security Professionals

Vulnerability Details:

• Vulnerable Method: getHistorical()
• Exploitation: The method does not properly validate symbols, allowing SQL injection.
• Patch: The vulnerability is patched in version 2.244.0, which includes improved symbol validation and input sanitization.

Detection and Response:

• Log Analysis: Review logs for unusual SQL queries or errors that may indicate an attempted exploitation.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious activities related to SQL injection.
• Incident Response Plan: Develop and implement an incident response plan to quickly address any detected exploitation attempts.

References:

• Ghostfolio Release Notes for Version 2.244.0
• Ghostfolio Security Advisory

Conclusion

CVE-2026-28785 represents a critical vulnerability in Ghostfolio that requires immediate attention. Organizations using the affected software should prioritize upgrading to the patched version and implement robust security measures to prevent future vulnerabilities. The potential impact on financial data and user trust underscores the importance of proactive cybersecurity practices.