Cross-Site Scripting Vulnerability in itsourcecode Event Management System by itsourcecode
CVE-2026-3043

5.3MEDIUM

Key Information:

Vendor

Itsourcecode

Status
Event Management System
Vendor
CVE Published:
23 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3043?

A vulnerability has been discovered in the itsourcecode Event Management System version 1.0, specifically in the file /admin/navbar.php. This flaw allows attackers to manipulate the 'page' argument, leading to the potential execution of cross-site scripting (XSS) attacks. Such attacks are executable from a remote location, posing a serious risk to users and their data. The exploit for this vulnerability has been made public, increasing the urgency for affected users to take protective measures.

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Affected Version(s)

Event Management 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-2026-3043 - Proof of Concept

References

https://vuldb.com/?id.347399
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347399
signaturepermissions-required
https://vuldb.com/?submit.757227
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

super_luoqing (VulDB User)
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