Cross-Site Scripting Vulnerability in Cyber-III Student-Management-System
CVE-2026-5668

4.8MEDIUM

Key Information:

Vendor

Cyber-iii

Status
Student-management-system
Vendor
CVE Published:
6 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5668?

A security flaw has been identified in the Cyber-III Student-Management-System, which impacts the /admin/Add%20notice/add%20notice.php file. This vulnerability arises from improper handling of the $_SERVER['PHP_SELF'] parameter, allowing a potential attacker to exploit cross-site scripting (XSS) vulnerabilities remotely. Despite the project maintainers being notified early about the issue, there has been no responsive action taken. The product uses a rolling release model, making it difficult to ascertain the extent of affected versions or the schedule for updates.

Affected Version(s)

Student-Management-System 1a938fa61e9f735078e9b291d2e6215b4942af3f

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-2026-5668 - Proof of Concept

References

https://vuldb.com/vuln/355490
vdb-entrytechnical-description
https://vuldb.com/vuln/355490/cti
signaturepermissions-required
https://vuldb.com/submit/785895
third-party-advisory

CVSS V4

Score:
4.8
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

saberhcx (VulDB User)
VulDB CNA Team
.