# CVE-2026-124571: SourceCodester Simple CRUD using PHP and FPDF SQL injection in register.php

Source: https://junglewise.ai/threats/cve-2026-124571-a-flaw-has-been-found-in-sourcecodester-simple-crud-using-php  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-09. Updated: 2026-11-09  
License: CC BY 4.0 with a link back

CVE-2026-124571 · Severity: medium · CVSS 6.3 · Published 2026-11-09

Simple CRUD using PHP and FPDF is a web application framework for managing database records. A SQL injection vulnerability in the registration form allows attackers to manipulate the firstname parameter and execute arbitrary database commands, potentially exposing or modifying user data. An authenticated attacker can exploit this remotely to bypass authentication, extract sensitive records, or modify the database.

Vendors: [SourceCodester](https://junglewise.ai/threats/vendors/sourcecodester).

## Quick answers

**Is CVE-2026-124571 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124571 being exploited in the wild.

**How severe is CVE-2026-124571?** Medium severity, with a CVSS score of 6.3, published 9 November 2026.

**Which products and versions are affected?** SourceCodester Simple CRUD using PHP and FPDF 1.0.

**Is there a fix for CVE-2026-124571?** 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-2026-124571 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-124571?** Check whether you run SourceCodester Simple CRUD using PHP and FPDF 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 register.php file insecurely concatenates user input from the firstname POST parameter directly into a SQL INSERT statement without prepared statements or input validation, creating a time-based blind SQL injection vulnerability. An authenticated attacker with network access can craft malicious SQL payloads in the firstname field to alter query logic and extract or modify database contents. The vulnerability has been confirmed by sqlmap on MySQL/MariaDB backends.

## Affected products

- SourceCodester Simple CRUD using PHP and FPDF 1.0

## Timeline

- 2026-11-09: disclosed
- 2026-10-15: advisory: Vulnerability report submitted

## References

- [https://github.com/cm126261/CVE/issues/2](https://github.com/cm126261/CVE/issues/2)
- [https://vuldb.com/cve/CVE-2026-124571](https://vuldb.com/cve/CVE-2026-124571)