Is CVE-2026-5031 in the CISA KEV catalog?

No. CVE-2026-5031 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-5031?

CVE-2026-5031 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-5031?

CVE-2026-5031 has an EPSS score of 0.23% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-5031?

No published fix for CVE-2026-5031 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-5031

MEDIUM

4.3

CVSS v3

NVD

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.

CWE-99

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.23%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.