CVE-2026-5814: PHPGurukul Online Course Registration SQL injection in check_availability.php

CVE-2026-5814 · Severity: high · CVSS 7.3 · Published 2026-04-09

PHPGurukul Online Course Registration is a web application used to manage student enrollments and course data. A security flaw allows remote attackers to interfere with the application's database without needing a username or password. This could lead to the theft of sensitive student information, unauthorized modification of records, or disruption of the registration service.

Technologies: Phpgurukul Online Course Registration. Vendors: Phpgurukul.

Quick answers

Is CVE-2026-5814 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-5814 being exploited in the wild.
How severe is CVE-2026-5814?
High severity, with a CVSS score of 7.3, published 9 April 2026.
Which products and versions are affected?
Phpgurukul Online Course Registration 3.1.
Is there a fix for CVE-2026-5814?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-5814 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-5814?
Check whether you run Phpgurukul Online Course Registration at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A SQL injection vulnerability exists in PHPGurukul Online Course Registration 3.1 within the '/admin/check_availability.php' file. The root cause is the failure to sanitize or validate the 'regno' POST parameter before using it in a database query. An unauthenticated remote attacker can exploit this using boolean-based or time-based blind SQL injection techniques. Successful exploitation allows for unauthorized database access, potentially leading to data exfiltration, modification, or full system compromise. A public exploit (PoC) has been disclosed, and no official patch is currently documented in the advisory.

Affected products

  • PHPGurukul Online Course Registration 3.1

Timeline

  • 2026-03-25: disclosed: Public issue opened on GitHub with PoC details
  • 2026-04-09: advisory: NVD publication date

References

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