Vulnerability · Published Mar 29, 2026 · Assigned by VulDB

CVE-2026-5031BichitroGan ISP Billing Software Endpoint users-view resource injection

Medium 4.3

In plain English

A medium-severity security flaw in ISP Billing Software from BichitroGan. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 86.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in BichitroGan ISP Billing Software 2025.3.20. Impacted is an unknown function of the file /?_route=settings/users-view/ of the component Endpoint. The manipulation of the argument ID results in improper control of resource identifiers. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
BichitroGan	ISP Billing Software	2025.3.20

Weakness: CWE-99 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

References

VDB-353953 | BichitroGan ISP Billing Software Endpoint users-view resource injection vdb-entry, technical-description
VDB-353953 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #778530 | BichitroGan ISP Billing Software 2025.3.20 Insecure Direct Object Reference (IDOR) / Broken Access Control third-party-advisory
https://github.com/4m3rr0r/PoCVulDb/issues/15 exploit, issue-tracking