Weekly threat intelligence digest: April 7 - 13, 2025

Executive summary

This week saw a critical escalation in cyber threats, with Microsoft's Patch Tuesday addressing a zero-day vulnerability in Windows CLFS exploited by ransomware groups. Additionally, multiple SQL injection vulnerabilities were disclosed in the codeprojects Online Restaurant Management System, highlighting weaknesses in web applications. The overall threat level remains high due to active exploitation of these flaws and the potential for further attacks leveraging newly patched vulnerabilities.

Critical & high priority

[CRITICAL] Microsoft April Patch Tuesday: Windows CLFS Zero-Day Exploited by Ransomware

What happened:
Microsoft's April 2025 security updates addressed a zero-day vulnerability (CVE-2025-29824) in the Windows Common Log File System (CLFS) driver. This use-after-free flaw allowed attackers to escalate privileges from a standard user to SYSTEM-level access. The RansomEXX ransomware group is actively exploiting this vulnerability, likely to enhance their attack capabilities and persistence mechanisms.

Who's affected:
All versions of Windows 10, Windows 11, and Windows Server (2016-2025) are vulnerable unless patched.

What to do:
Immediately apply Microsoft's April 2025 Patch Tuesday updates. Organizations should prioritize this patch due to active exploitation and the critical nature of the flaw. Monitor for any signs of unauthorized privilege escalation or potential ransomware activity.

[CRITICAL] Multiple SQL Injection Vulnerabilities in Online Restaurant Management System

What happened:
The codeprojects Online Restaurant Management System 1.0 was found to contain multiple critical SQL injection vulnerabilities across several files, including /reservation_save.php, /payment_save.php, and others. These flaws allow remote attackers to inject malicious SQL commands, leading to unauthorized data access or manipulation.

Who's affected:
Any organization using the codeprojects Online Restaurant Management System 1.0 is at risk of exploitation.

What to do:
Patch the system immediately with updates from codeprojects. Implement input validation and parameterized queries in web applications to mitigate similar risks. Conduct thorough security audits of third-party software integrations.

Notable developments

Surge in SQL Injection Attacks Targeting Web Applications

Security researchers observed a spike in SQL injection attacks targeting vulnerable web applications, particularly older versions of restaurant management and e-commerce systems. This trend underscores the importance of regular software updates and robust input validation mechanisms.

Increased Ransomware Activity Leveraging Zero-Day Exploits

The exploitation of CVE-2025-29824 by RansomEXX highlights a shift in ransomware tactics, with groups increasingly targeting zero-day vulnerabilities to bypass traditional security measures. This trend suggests that defenders must prioritize rapid patching and proactive threat detection.

Vulnerability landscape

Total new CVEs tracked this week: 1

• Critical (CVSS 7.3): 5 SQL injection vulnerabilities in codeprojects Online Restaurant Management System.
• High (CVSS 8.4): 5 access control vulnerabilities in an unspecified security verification module.

Severity distribution:

• Critical: 5 (SQL injection)
• High: 5 (access control)

Top affected vendors:

• Microsoft: 1 vulnerability
• codeprojects: 5 vulnerabilities

Notable patterns:

• A cluster of SQL injection flaws in a single product, indicating potential weaknesses in its development process.
• Multiple high-severity access control issues in an unspecified module, suggesting broader vulnerabilities in enterprise security infrastructure.

Recommended actions

1. Apply Microsoft's April Patch Tuesday updates immediately to address the critical CLFS zero-day (CVE-2025-29824) and other vulnerabilities patched this week.
2. Patch codeprojects Online Restaurant Management System 1.0 to mitigate SQL injection risks. Contact codeprojects for available updates.
3. Monitor for RansomEXX activity targeting Windows systems. Implement robust endpoint detection and response (EDR) solutions to detect suspicious behavior.
4. Review web application security practices to prevent SQL injection attacks. Use tools like OWASP ZAP or Burp Suite for penetration testing.
5. Enhance access control measures in enterprise systems to mitigate the risks posed by high-severity vulnerabilities in security verification modules.
6. Conduct a risk assessment of third-party software integrations, focusing on web applications and management systems.
7. Update all vulnerable Windows versions (Windows 10, 11, Server 2016-2025) to prevent potential exploitation of the CLFS zero-day.

Looking ahead

Next week, expect increased activity around the patched Microsoft vulnerabilities as attackers test for unpatched systems. Additionally, watch for new exploit tools targeting the SQL injection flaws in codeprojects' system. Organizations should remain vigilant and prioritize updates for all critical software components to stay ahead of emerging threats.