# CVE-2026-86223: SourceCodester Class and Exam Timetabling System SQL injection in course parameter

Source: https://junglewise.ai/threats/cve-2026-86223-sourcecodester-class-and-exam-timetabling-system-sql-injection-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-06. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-86223 · Severity: high · CVSS 7.3 · Published 2026-09-06

SourceCodester Class and Exam Timetabling System is a web-based scheduling application for managing class and exam timetables. An SQL injection vulnerability in the course parameter allows remote attackers to manipulate database queries, potentially exposing or modifying sensitive student and course data, or disrupting timetable operations.

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-2026-86223 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86223 being exploited in the wild.

**How severe is CVE-2026-86223?** High severity, with a CVSS score of 7.3, published 6 September 2026.

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

**Is there a fix for CVE-2026-86223?** 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-2026-86223 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-86223?** 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

The vulnerability is a classic SQL injection flaw in the /admin/modal_add_coursea.php file, specifically in the mysqli_query function handling the "course" parameter. An unauthenticated remote attacker can inject arbitrary SQL code by manipulating the course argument, bypassing input validation. This allows full database read/write access, enabling data extraction, modification, or deletion. The exploit has been publicly disclosed and is currently not known to be actively exploited in the wild.

## Affected products

- SourceCodester Class and Exam Timetabling System 1.0

## Timeline

- 2026-09-06: disclosed

## References

- [https://github.com/justconter/_CVE/issues/4](https://github.com/justconter/_CVE/issues/4)
- [https://vuldb.com/cve/CVE-2026-86223](https://vuldb.com/cve/CVE-2026-86223)

## 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)
- [SourceCodester Class and Exam Timetabling System SQL injection in room management](https://junglewise.ai/threats/cve-2026-86225-sourcecodester-class-and-exam-timetabling-system-sql-injection-in)
- [SourceCodester Class and Exam Timetabling System SQL injection in product modal](https://junglewise.ai/threats/cve-2026-86224-sourcecodester-class-and-exam-timetabling-system-sql-injection-in)
- [SourceCodester Class and Exam Timetabling System SQL injection in course parameter](https://junglewise.ai/threats/cve-2026-86222-sourcecodester-class-and-exam-timetabling-system-sql-injection-in)