Cross Site Scripting Vulnerability in SourceCodester Class and Exam Timetabling System
CVE-2026-16485

5.3MEDIUM

Key Information:

Vendor

Sourcecodester
Status
Class And Exam Timetabling System
Vendor
CVE Published:
21 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16485?

A cross site scripting vulnerability exists in the SourceCodester Class and Exam Timetabling System 1.0, specifically related to the manipulation of the 'day' argument in the /class.php file. This flaw enables an attacker to execute arbitrary scripts in the user's browser, which can compromise sensitive information or allow for further exploits. The vulnerability can be remotely triggered, posing a significant risk to users. To mitigate the risk, it is essential to implement input validation and implement security best practices.

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-2026-16485 - Proof of Concept

References

https://vuldb.com/vuln/380943
vdb-entrytechnical-description
https://vuldb.com/vuln/380943/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16485
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

HackFour (VulDB User)
.