# CVE-2026-16228: SourceCodester Class and Exam Timetabling System SQL injection in edit_schoolyr.php

Source: https://junglewise.ai/threats/cve-2026-16228-sourcecodester-class-and-exam-timetabling-system-sql-injection-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-19. Updated: 2026-07-19  
License: CC BY 4.0 with a link back

CVE-2026-16228 · Severity: high · CVSS 7.3 · Published 2026-07-19

A security vulnerability exists in the SourceCodester Class and Exam Timetabling System, a web application used for managing academic schedules. An attacker can exploit this flaw to gain unauthorized access to the underlying database, potentially leading to the theft of sensitive school data or the modification of exam records. This attack can be carried out remotely without requiring any login credentials.

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-2026-16228 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-16228 being exploited in the wild.

**How severe is CVE-2026-16228?** High severity, with a CVSS score of 7.3, published 19 July 2026.

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

**Is there a fix for CVE-2026-16228?** 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-2026-16228 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-16228?** 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_schoolyr.php' component. The root cause is the failure to properly sanitize or validate the 'id' GET parameter before using it in a database query. A remote, unauthenticated attacker can exploit this by sending crafted SQL payloads (including boolean-based blind, error-based, and UNION-based techniques) to manipulate database queries. This can result in full database compromise, including unauthorized data extraction and modification. Public exploit code and proof-of-concept details are available.

## Affected products

- SourceCodester Class and Exam Timetabling System 1.0

## Timeline

- 2026-06-14: disclosed: Vulnerability details and PoC shared on GitHub
- 2026-07-19: advisory: NVD/VulDB advisory published

## References

- [https://github.com/fichterclapsaddle879-rgb/MyCve/issues/1](https://github.com/fichterclapsaddle879-rgb/MyCve/issues/1)
- [https://vuldb.com/cve/CVE-2026-16228](https://vuldb.com/cve/CVE-2026-16228)
- [https://vuldb.com/submit/858247](https://vuldb.com/submit/858247)
- [https://vuldb.com/vuln/380050](https://vuldb.com/vuln/380050)
- [https://vuldb.com/vuln/380050/cti](https://vuldb.com/vuln/380050/cti)
- [https://www.sourcecodester.com/](https://www.sourcecodester.com/)

## Related threats

- [SourceCodester Class and Exam Timetabling System XSS in subject parameter](https://junglewise.ai/threats/cve-2026-90615-sourcecodester-class-and-exam-timetabling-system-xss-in-subject)
- [SourceCodester Class and Exam Timetabling System SQL injection in /delete_subject.php](https://junglewise.ai/threats/cve-2026-86298-sourcecodester-class-and-exam-timetabling-system-sql-injection-in)
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