Privilege escalation in Mayuri K Best Courier Management System

CVE-2026-5330

A vulnerability was found in SourceCodester/mayuri_k Best Courier Management System 1.0. Affected by this issue is some unknown functionality of the file /ajax.php?action=delete_user of the component User Delete Handler. Performing a manipulation of the argument ID results in improper access controls. The attack may be initiated remotely. The exploit has been made public and could be used.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (42.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-5330: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-5330?
CVE-2026-5330 is a medium-severity vulnerability in Mayuri K Best Courier Management System, classified under Incorrect Privilege Assignment. CVSS score: 6.5/10. Published 2026-04-02.
How severe is CVE-2026-5330?
Medium severity. CVSS v3 base score is 6.5 out of 10.