Insecure Direct Object Reference in BichitroGan ISP Billing Software
CVE-2026-5031

5.3MEDIUM

Key Information:

Vendor

Bichitrogan

Status
Isp Billing Software
Vendor
CVE Published:
29 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5031?

A vulnerability has been identified in the BichitroGan ISP Billing Software version 2025.3.20 that impacts the Endpoint component. This issue arises from improper control of resource identifiers due to an insecure function located at /?_route=settings/users-view/. Attackers can manipulate the argument ID to gain unauthorized access to resource identifiers, enabling potential remote exploitation. This threat has been publicly disclosed, and despite efforts to inform the vendor, there has been no response to address the security concern.

Affected Version(s)

ISP Billing Software 2025.3.20

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-2026-5031 - Proof of Concept

References

https://vuldb.com/vuln/353953
vdb-entrytechnical-description
https://vuldb.com/vuln/353953/cti
signaturepermissions-required
https://vuldb.com/submit/778530
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
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

4m3rr0r (VulDB User)
VulDB
.