Cross-Site Scripting Vulnerability in Cyber-III Student-Management-System
CVE-2026-5671

5.3MEDIUM

Key Information:

Vendor

Cyber-iii

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5671?

A cross-site scripting vulnerability is present in the Cyber-III Student-Management-System within the Class Schedule Deletion Endpoint located at /admin/class%20schedule/delete_batch.php. This flaw allows an attacker to manipulate the 'batch' argument, potentially leading to the injection of malicious scripts. Due to the lack of versioning in the product, specific details about affected releases are unclear. The issue has been publicly disclosed, and while the development team was notified early, there has been no response or fix provided.

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-2026-5671 - Proof of Concept

References

https://vuldb.com/vuln/355493
vdb-entrytechnical-description
https://vuldb.com/vuln/355493/cti
signaturepermissions-required
https://vuldb.com/submit/786028
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

zsmaaa (VulDB User)
VulDB CNA Team
.