Auth bypass in Inspireui Mstore API

CVE-2023-3076

The MStore API WordPress plugin before 3.9.9 does not prevent visitors from creating user accounts with the role of their choice via their wholesale REST API endpoint. This is only exploitable if the site owner paid to access the plugin's pro features.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.5% 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-2023-3076: held from 0.022 to 0.022.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-3076?
CVE-2023-3076 is a critical-severity vulnerability in Inspireui Mstore API, classified under Missing Authorization. CVSS score: 9.8/10. Published 2023-07-10.
How severe is CVE-2023-3076?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-3076 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.