SQL Injection Vulnerability in PHPGurukul Online Course Registration 3.1
CVE-2026-5813

6.9MEDIUM

Key Information:

Vendor

PHPgurukul
Status
Online Course Registration
Vendor
CVE Published:
8 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5813?

A vulnerability has been detected in PHPGurukul Online Course Registration 3.1, specifically in the /check_availability.php file. Flaws in the handling of the 'cid' argument allow for SQL injection, enabling remote attackers to manipulate database queries. This security weakness can be exploited, potentially compromising sensitive data and leading to unauthorized actions within the application. It is crucial for users and administrators to be aware of this vulnerability and take immediate measures to secure their systems.

Affected Version(s)

Online Course Registration 3.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-5813 - Proof of Concept

References

https://vuldb.com/vuln/356261
vdb-entrytechnical-description
https://vuldb.com/vuln/356261/cti
signaturepermissions-required
https://vuldb.com/submit/787686
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.