PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-5813 PHPGurukul CVE debrief

A SQL injection vulnerability has been identified in PHPGurukul Online Course Registration 3.1. The vulnerability affects the /check_availability.php file and can be exploited remotely by manipulating the cid argument. This could lead to unauthorized access to sensitive data or disruption of service. Users of PHPGurukul Online Course Registration 3.1 should be aware of this vulnerability and take steps to mitigate it. The exploit has been made available to the public and could be used for attacks.

Vendor
PHPGurukul
Product
Online Course Registration
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-24
Advisory published
2026-04-08
Advisory updated
2026-07-24

Who should care

Users of PHPGurukul Online Course Registration 3.1, administrators, security teams, and vulnerability management teams should be aware of this vulnerability and take steps to mitigate it. This vulnerability could lead to unauthorized access to sensitive data or disruption of service.

Technical summary

The vulnerability is caused by a lack of input validation in the /check_availability.php file, allowing an attacker to inject malicious SQL code by manipulating the cid argument. This could lead to unauthorized access to sensitive data or disruption of service. The vulnerability has a CVSS score of 5.5 and a severity of MEDIUM. The CVE record was published on 2026-04-08T23:17:00.833Z and was last modified on 2026-07-24T09:10:00.153Z.

Defensive priority

Medium

Recommended defensive actions

  • Apply the vendor's patch or update to a version that addresses this vulnerability.
  • Implement input validation and sanitization for user input to prevent SQL injection attacks.
  • Monitor for suspicious activity and implement logging and auditing to detect potential attacks.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-04-08T23:17:00.833Z and was last modified on 2026-07-24T09:10:00.153Z. The NVD entry is currently Deferred. The vulnerability affects PHPGurukul Online Course Registration 3.1, specifically the /check_availability.php file, where an attacker can inject malicious SQL code by manipulating the cid argument. Evidence of this vulnerability is based on limited source information and may not be comprehensive. Further verification is recommended.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-04-08T23:17:00.833Z and has not been modified since then. The NVD entry is currently Deferred.