What is CVE-2018-12457?

CVE-2018-12457 is a high-severity vulnerability in Expresscart Project, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 8.8/10. Published 2018-06-15.

How severe is CVE-2018-12457?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Expresscart Project

CVE-2018-12457

expressCart before 1.1.6 allows remote attackers to create an admin user via a /admin/setup Referer header.

Published 2018-06-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.019 (79.1th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Expresscart Project

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

www.npmjs.com/package/express-cart (Third Party Advisory)
hackerone.com/reports/343626 (Third Party Advisory, Issue Tracking)
github.com/mrvautin/expressCart/commit/baccaae9b0b72f00b10c5453ca00231340ad3e3b (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-12457?: CVE-2018-12457 is a high-severity vulnerability in Expresscart Project, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 8.8/10. Published 2018-06-15.
How severe is CVE-2018-12457?: High severity. CVSS v3 base score is 8.8 out of 10.