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Vulnerabilities

CVE-2026-5543

Medium
A vulnerability was identified in PHPGurukul User Registration & Login and User Management System 3.3. The affected elem
CWE-74 — Weakness Type
Published: Apr 5, 2026  ·  Modified: Apr 8, 2026  ·  Source: CIRCL
CVSS v3
6.3
🔗 NVD Official
📄 Description (English)

A vulnerability was identified in PHPGurukul User Registration & Login and User Management System 3.3. The affected element is an unknown function of the file /admin/yesterday-reg-users.php. The manipulation of the argument ID leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

🤖 AI Executive Summary

CVE-2026-5543 is a SQL injection vulnerability in PHPGurukul User Registration & Login System 3.3 affecting the /admin/yesterday-reg-users.php file. The vulnerability allows remote attackers to manipulate the ID parameter to execute arbitrary SQL queries, potentially leading to unauthorized data access or modification. With a CVSS score of 6.3 and publicly available exploit code, this poses a moderate but actionable threat to organizations using this system.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 19, 2026 03:18
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations using PHPGurukul for user management, particularly in government agencies, educational institutions, and small-to-medium enterprises (SMEs) that may use this open-source system for employee or citizen registration portals. Government entities under NCA oversight and educational institutions are at highest risk due to the sensitivity of user registration data. Banking sector exposure is limited unless used in non-critical auxiliary systems. Healthcare organizations using this for patient registration could face HIPAA-equivalent compliance violations under Saudi healthcare regulations.
🏢 Affected Saudi Sectors
Government Education Healthcare Small-to-Medium Enterprises (SMEs) Non-Profit Organizations
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all instances of PHPGurukul 3.3 in your environment, particularly those exposed to the internet
2. Restrict access to /admin/yesterday-reg-users.php to authorized administrators only using firewall rules or web application firewall (WAF) policies
3. Implement input validation and parameterized queries (prepared statements) in the vulnerable file
4. Review database access logs for suspicious SQL patterns or unauthorized data extraction attempts

Patching Guidance:
1. Contact PHPGurukul developers for security patches or upgrade to a patched version if available
2. If no official patch exists, apply the following compensating controls immediately

Compensating Controls (if patch unavailable):
1. Implement Web Application Firewall (WAF) rules to block SQL injection patterns in the ID parameter
2. Use database user accounts with minimal privileges (read-only where possible) for the application
3. Enable SQL query logging and monitoring for anomalous patterns
4. Implement rate limiting on the /admin/yesterday-reg-users.php endpoint
5. Apply principle of least privilege to admin access

Detection Rules:
1. Monitor for SQL keywords (UNION, SELECT, DROP, INSERT, UPDATE) in ID parameter values
2. Alert on multiple failed database queries from the application
3. Track unusual data volume extraction from user registration tables
4. Monitor for authentication bypass attempts targeting admin functions
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع نسخ PHPGurukul 3.3 في بيئتك، خاصة تلك المكشوفة على الإنترنت
2. قيد الوصول إلى /admin/yesterday-reg-users.php للمسؤولين المصرح لهم فقط باستخدام قواعد جدار الحماية أو سياسات جدار تطبيقات الويب
3. طبق التحقق من صحة المدخلات والاستعلامات المعاملة (البيانات المحضرة) في الملف المعرض للخطر
4. راجع سجلات الوصول إلى قاعدة البيانات للبحث عن أنماط SQL المريبة أو محاولات استخراج البيانات غير المصرح بها

إرشادات التصحيح:
1. اتصل بمطوري PHPGurukul للحصول على تصحيحات أمنية أو الترقية إلى نسخة معدلة إن توفرت
2. إذا لم يكن هناك تصحيح رسمي، طبق الضوابط التعويضية التالية فوراً

الضوابط التعويضية (إذا لم يكن التصحيح متاحاً):
1. طبق قواعد جدار تطبيقات الويب لحجب أنماط حقن SQL في معامل ID
2. استخدم حسابات مستخدمي قاعدة البيانات بامتيازات محدودة (قراءة فقط حيث أمكن)
3. فعّل تسجيل الاستعلامات وراقب الأنماط الشاذة
4. طبق تحديد معدل على نقطة نهاية /admin/yesterday-reg-users.php
5. طبق مبدأ أقل امتياز على الوصول الإداري

قواعد الكشف:
1. راقب كلمات SQL الرئيسية (UNION, SELECT, DROP, INSERT, UPDATE) في قيم معامل ID
2. أصدر تنبيهات عند فشل استعلامات قاعدة البيانات المتعددة من التطبيق
3. تتبع استخراج حجم البيانات غير المعتاد من جداول تسجيل المستخدمين
4. راقب محاولات تجاوز المصادقة التي تستهدف الوظائف الإدارية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.14.2.1 - Secure development policy and procedures ECC 2024 A.14.2.5 - Secure coding practices and code review ECC 2024 A.12.6.1 - Management of technical vulnerabilities ECC 2024 A.12.2.1 - User access management and authentication
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory SAMA CSF PR.AC-1 - Access control and authentication SAMA CSF PR.DS-2 - Data security and protection SAMA CSF DE.CM-1 - Detection and monitoring of anomalies
🟡 ISO 27001:2022
ISO 27001:2022 A.8.1 - User endpoint devices ISO 27001:2022 A.8.3 - Access control ISO 27001:2022 A.14.2 - Development security ISO 27001:2022 A.12.6 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 6.5.1 - Injection flaws prevention PCI DSS 6.2 - Security patches and updates PCI DSS 11.2 - Vulnerability scanning and assessment
📊 CVSS Score
6.3
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityL — Low / Local
📋 Quick Facts
Severity Medium
CVSS Score6.3
CWECWE-74
EPSS0.03%
Exploit No
Patch ✗ No
Published 2026-04-05
Source Feed circl
Views 5
🇸🇦 Saudi Risk Score
6.8
/ 10.0 — Saudi Risk
Priority: HIGH
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