EUVD-2025-37763

Comprehensive Technical Analysis of EUVD-2025-37763

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-37763 pertains to SQL injection in Django, a high-level Python web framework. The issue affects specific versions of Django and involves the methods QuerySet.filter(), QuerySet.exclude(), QuerySet.get(), and the class Q(). The vulnerability arises when using a suitably crafted dictionary with dictionary expansion as the _connector argument.

Severity Evaluation:

• Base Score: 9.1
• Base Score Version: CVSS:3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

The high base score of 9.1 indicates a critical vulnerability. The CVSS vector breakdown shows that the vulnerability can be exploited over the network (AV:N), requires low complexity (AC:L), does not need privileges (PR:N) or user interaction (UI:N), and has a high impact on confidentiality (C:H) and integrity (I:H), with no impact on availability (A:N).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• SQL Injection: An attacker can craft a malicious dictionary input to the _connector argument, leading to SQL injection. This can allow the attacker to execute arbitrary SQL commands on the database.

Exploitation Methods:

• Crafted Dictionary Input: By manipulating the dictionary input to the _connector argument, an attacker can inject SQL code. This can be done through web forms, API endpoints, or any other input mechanisms that interact with the vulnerable methods.

3. Affected Systems and Software Versions

Affected Django Versions:

• Django 5.1 before 5.1.14
• Django 4.2 before 4.2.26
• Django 5.2 before 5.2.8

Potentially Affected Unsupported Versions:

• Django 5.0.x
• Django 4.1.x
• Django 3.2.x

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade Django: Upgrade to the patched versions:
  • Django 5.1.14 or later
  • Django 4.2.26 or later
  • Django 5.2.8 or later

Additional Mitigation:

• Input Validation: Implement strict input validation and sanitization for all user inputs.
• Parameterized Queries: Use parameterized queries to prevent SQL injection.
• Web Application Firewalls (WAF): Deploy WAFs to detect and block SQL injection attempts.
• Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using Django, particularly those in the European Union. Given the widespread use of Django in web applications, the potential for data breaches and unauthorized access is high. This underscores the importance of timely patching and adherence to best security practices.

6. Technical Details for Security Professionals

Technical Overview:

• Vulnerable Methods: QuerySet.filter(), QuerySet.exclude(), QuerySet.get(), and the class Q().
• Vulnerable Argument: _connector argument when used with dictionary expansion.
• Exploitation: Crafted dictionary input can lead to SQL injection, allowing arbitrary SQL execution.

References:

• NVD Entry: CVE-2025-64459
• Django Security Releases: Django Security Releases
• GitHub Commits:
  • Commit 06dd38324ac3d60d83d9f3adabf0dcdf423d2a85
  • Commit 59ae82e67053d281ff4562a24bbba21299f0a7d4
  • Commit 6703f364d767e949c5b0e4016433ef75063b4f9b
  • Commit 72d2c87431f2ae0431d65d0ec792047f078c8241

Conclusion: The SQL injection vulnerability in Django is critical and requires immediate attention. Organizations should prioritize upgrading to the patched versions and implement additional security measures to mitigate the risk. Regular monitoring and adherence to best practices will help maintain a robust security posture.