# CVE-2026-16484: SourceCodester Class and Exam Timetabling System SQL injection in edit_subjecta.php

Source: https://junglewise.ai/threats/cve-2026-16484-sourcecodester-class-and-exam-timetabling-system-sql-injection-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-21. Updated: 2026-07-21  
License: CC BY 4.0 with a link back

CVE-2026-16484 · Severity: high · CVSS 7.3 · Published 2026-07-21

A security vulnerability has been identified in the SourceCodester Class and Exam Timetabling System, a software tool used for managing academic schedules. An attacker can exploit this flaw to gain unauthorized access to the underlying database without needing a username or password. This could lead to the theft of sensitive school data, modification of exam schedules, or disruption of the system's availability.

Technologies: [SourceCodester Class and Exam Timetabling System](https://junglewise.ai/threats/technologies/class-and-exam-timetabling-system). Vendors: [SourceCodester](https://junglewise.ai/threats/vendors/sourcecodester).

## Quick answers

**Is CVE-2026-16484 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-16484 being exploited in the wild.

**How severe is CVE-2026-16484?** High severity, with a CVSS score of 7.3, published 21 July 2026.

**Which products and versions are affected?** SourceCodester Class and Exam Timetabling System 1.0.

**Is there a fix for CVE-2026-16484?** 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-2026-16484 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-16484?** Check whether you run SourceCodester Class and Exam Timetabling 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

A SQL injection vulnerability exists in SourceCodester Class and Exam Timetabling System 1.0 within the '/edit_subjecta.php' file. The root cause is the improper neutralization of the 'id' GET parameter before it is used in a database query. A remote, unauthenticated attacker can exploit this by sending specially crafted SQL payloads (including boolean-based blind, error-based, and UNION-based techniques) to manipulate database queries. Successful exploitation allows for unauthorized data retrieval, modification, or deletion. No patches are currently reported; remediation should include implementing prepared statements with parameterized queries.

## Affected products

- SourceCodester Class and Exam Timetabling System 1.0

## Timeline

- 2026-06-16: disclosed: Vulnerability details and PoC shared on GitHub
- 2026-07-21: advisory: NVD/VulDB advisory published

## References

- [https://github.com/austincooke723-tech/web-re-cve/issues/1](https://github.com/austincooke723-tech/web-re-cve/issues/1)
- [https://vuldb.com/cve/CVE-2026-16484](https://vuldb.com/cve/CVE-2026-16484)
- [https://vuldb.com/submit/859905](https://vuldb.com/submit/859905)
- [https://vuldb.com/vuln/380942](https://vuldb.com/vuln/380942)
- [https://vuldb.com/vuln/380942/cti](https://vuldb.com/vuln/380942/cti)
- [https://www.sourcecodester.com/](https://www.sourcecodester.com/)

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