SQL Injection Vulnerability in itsourcecode Online Cellphone System 1.0
CVE-2026-5553

5.3MEDIUM

Key Information:

Vendor

Itsourcecode

Status
Online Cellphone System
Vendor
CVE Published:
5 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5553?

A SQL injection vulnerability has been identified in the itsourcecode Online Cellphone System 1.0. The flaw exists in the /cp/available.php file, specifically within the Parameter Handler component. An attacker can exploit the vulnerability by manipulating the 'Name' argument, leading to unauthorized database queries. This vulnerability allows remote attackers to execute arbitrary SQL code, potentially compromising sensitive data. Publicly available exploits increase the urgency for remediation.

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Affected Version(s)

Online Cellphone 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-2026-5553 - Proof of Concept

References

https://vuldb.com/vuln/355323
vdb-entrytechnical-description
https://vuldb.com/vuln/355323/cti
signaturepermissions-required
https://vuldb.com/submit/782873
third-party-advisory

CVSS V4

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

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

wenzhuolin (VulDB User)
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