Cross-Site Scripting Vulnerability in itsourcecode Electronic Judging System
CVE-2026-9527

5.3MEDIUM

Key Information:

Vendor

Itsourcecode

Status
Electronic Judging System
Vendor
CVE Published:
26 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9527?

A cross-site scripting vulnerability has been identified in the itsourcecode Electronic Judging System version 1.0. The issue arises from improper handling of the 'fname' parameter within the /admin/judges.php file. This flaw allows remote attackers to inject malicious scripts, potentially compromising the integrity of the web application. Exploitation avenues have been publicly disclosed, underscoring the need for prompt remediation measures to protect user data and maintain application security.

Affected Version(s)

Electronic Judging 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-2026-9527 - Proof of Concept

References

https://vuldb.com/vuln/365546
vdb-entrytechnical-description
https://vuldb.com/vuln/365546/cti
signaturepermissions-required
https://vuldb.com/submit/814715
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

i-OvO-i (VulDB User)
.