CVE-2018-12457 is a high-severity (CVSS 8.8) CWE-732 vulnerability in express-cart. A fix is available for express-cart — see the affected versions and patch details below.
express-cart allows any user to create an admin user
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
express-cartnpmDescription
expressCart before 1.1.6 allows remote attackers to create an admin user via a /admin/setup Referer header.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | express-cart | all versions | 1.1.6npm install express-cart@1.1.6 |
Affected Products
expresscartexpresscart_projectDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for express-cart, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update express-cart to 1.1.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-12457 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is CVE-2018-12457 in your dependencies?
Find it across npm, including transitive dependencies.