# CVE-2026-105471: Online-Appointment-Booking-System SQL injection in signup.php

Source: https://junglewise.ai/threats/cve-2026-105471-a-security-flaw-has-been-discovered-in-girishsaraf-online  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-06. Updated: 2026-10-06  
License: CC BY 4.0 with a link back

CVE-2026-105471 · Severity: high · CVSS 7.3 · Published 2026-10-06

An online appointment booking system for clinics contains a SQL injection vulnerability in its patient registration form. An unauthenticated attacker can inject malicious SQL code through the registration field to extract sensitive data such as patient passwords and other database contents, or bypass authentication checks entirely.

Technologies: [Girishsaraf Online-Appointment-Booking-System](https://junglewise.ai/threats/technologies/online-appointment-booking-system). Vendors: [Girishsaraf](https://junglewise.ai/threats/vendors/girishsaraf).

## Quick answers

**Is CVE-2026-105471 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-105471 being exploited in the wild.

**How severe is CVE-2026-105471?** High severity, with a CVSS score of 7.3, published 6 October 2026.

**Which products and versions are affected?** Girishsaraf Online-Appointment-Booking-System up to commit f427b4757128ca253d33d0cc4e87bbb9c999a4d5.

**Is there a fix for CVE-2026-105471?** 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-2026-105471 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-105471?** Check whether you run Girishsaraf Online-Appointment-Booking-System 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

The signup.php registration handler concatenates user-supplied POST parameters (particularly fname) directly into a SQL INSERT statement without sanitization or prepared statements, enabling error-based SQL injection. An attacker can craft a malicious registration request to both disclose the raw SQL query via error messages and extract arbitrary database data by injecting subqueries into the Values clause. The vulnerability requires no authentication and is remotely exploitable via HTTP POST requests.

## Affected products

- girishsaraf Online-Appointment-Booking-System up to commit f427b4757128ca253d33d0cc4e87bbb9c999a4d5

## Timeline

- 2026-09-16: disclosed: SQL injection issue reported on GitHub
- 2026-10-06: advisory: CVE-2026-105471 published

## References

- [https://github.com/girishsaraf/Online-Appointment-Booking-System/](https://github.com/girishsaraf/Online-Appointment-Booking-System/)
- [https://github.com/girishsaraf/Online-Appointment-Booking-System/issues/9](https://github.com/girishsaraf/Online-Appointment-Booking-System/issues/9)

## Related threats

- [girishsaraf Online-Appointment-Booking-System missing authorization in booking status update](https://junglewise.ai/threats/cve-2026-109525-a-vulnerability-was-identified-in-girishsaraf-online-appointment)
- [girishsaraf Online-Appointment-Booking-System missing authorization in admin pages](https://junglewise.ai/threats/cve-2026-109524-a-vulnerability-was-determined-in-girishsaraf-online-appointment)
- [girishsaraf Online-Appointment-Booking-System SQL injection in AJAX endpoints](https://junglewise.ai/threats/cve-2026-109523-a-vulnerability-was-found-in-girishsaraf-online-appointment)
- [girishsaraf Online-Appointment-Booking-System SQL injection in Admin CRUD](https://junglewise.ai/threats/cve-2026-109522-a-vulnerability-has-been-found-in-girishsaraf-online-appointment)
- [girishsaraf Online-Appointment-Booking-System SQL injection in changebookingstatus.php](https://junglewise.ai/threats/cve-2026-109521-a-vulnerability-was-detected-in-girishsaraf-online-appointment)