CVE-2025-13276: Critical SQL Injection Vulnerability in g33kyrash Online-Banking-System

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Overview

CVE-2025-13276 describes a critical SQL Injection vulnerability found in the g33kyrash Online-Banking-System. This flaw allows a remote attacker to execute arbitrary SQL commands by manipulating the Username argument in the /index.php file. The exploit is publicly available, increasing the risk of exploitation.

Technical Details

The vulnerability resides within the /index.php file of the g33kyrash Online-Banking-System. By crafting a malicious payload within the Username parameter of a request to this file, an attacker can inject arbitrary SQL code into the database query. This can lead to the disclosure of sensitive information, modification of data, or even complete compromise of the database server.

The affected version is up to commit 12dbfa690e5af649fb72d2e5d3674e88d6743455. Due to the system’s continuous delivery approach with rolling releases, specific version numbers for affected and patched versions are not available.

CVSS Analysis

The Common Vulnerability Scoring System (CVSS) assigns a score of 7.3 to CVE-2025-13276, indicating a HIGH severity vulnerability.

This score reflects the following factors:

  • Attack Vector: Network (AV:N) – The vulnerability can be exploited remotely.
  • Attack Complexity: Low (AC:L) – The attack requires minimal skill or effort to execute.
  • Privileges Required: None (PR:N) – No privileges are required to exploit the vulnerability.
  • User Interaction: None (UI:N) – No user interaction is required to trigger the vulnerability.
  • Scope: Changed (S:C) – Exploitation can affect components beyond the vulnerable application.
  • Confidentiality Impact: High (C:H) – Sensitive information can be disclosed.
  • Integrity Impact: High (I:H) – Data can be modified or deleted.
  • Availability Impact: High (A:H) – The system can be rendered unavailable.

Possible Impact

Successful exploitation of CVE-2025-13276 can have severe consequences, including:

  • Data Breach: Leakage of sensitive customer data, including personal and financial information.
  • Account Takeover: Attackers can gain control of user accounts, potentially leading to fraudulent transactions.
  • Data Manipulation: Modification of account balances, transaction history, or other critical data.
  • Service Disruption: Denial-of-service attacks through database manipulation, rendering the online banking system unavailable.
  • Reputational Damage: Loss of customer trust and damage to the organization’s reputation.

Mitigation or Patch Steps

Due to the rolling release nature of the g33kyrash Online-Banking-System, specific patch version details are unavailable. However, the following mitigation steps are strongly recommended:

  • Input Validation: Implement robust input validation and sanitization for all user-supplied data, especially the Username parameter in the /index.php file. Use parameterized queries or prepared statements to prevent SQL injection.
  • Web Application Firewall (WAF): Deploy a WAF to detect and block malicious SQL injection attempts.
  • Regular Security Audits: Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.
  • Stay Updated: Monitor the project’s communication channels (if available) for any announcements regarding security updates or mitigation strategies. Contact the vendor directly for guidance.
  • Least Privilege: Ensure that the database user account used by the application has only the necessary privileges to perform its intended functions.

References

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