SQL Injection Vulnerability in SourceCodester Class and Exam Timetabling System
CVE-2026-86221

6.9MEDIUM

Key Information:

Vendor

Sourcecodester
Status
Class And Exam Timetabling System
Vendor
CVE Published:
6 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-86221?

A vulnerability exists in SourceCodester's Class and Exam Timetabling System 1.0 due to improper handling of user input in the mysqli_query function within the file /admin/modal_add_course1.php. This flaw enables attackers to execute arbitrary SQL commands remotely, potentially compromising the underlying database. Immediate action is recommended to mitigate exploitation risks.

Affected Version(s)

Class and Exam Timetabling System 1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-86221 - Proof of Concept

References

https://vuldb.com/vuln/399374
vdb-entrytechnical-description
https://vuldb.com/vuln/399374/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-86221
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

justconter (VulDB User)
.