What is CVE-2017-1000228?

CVE-2017-1000228 is a critical-severity vulnerability in Ejs, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-11-17.

How severe is CVE-2017-1000228?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2017-1000228 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Ejs

CVE-2017-1000228

nodejs ejs versions older than 2.5.3 is vulnerable to remote code execution due to weak input validation in ejs.renderFile() function

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-11-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.063 (93.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.063 · newest: 0.063 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

www.securityfocus.com/bid/101897 (VDB Entry, Third Party Advisory, vdb-entry)
snyk.io/vuln/npm:ejs:20161128 (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-1000228?: CVE-2017-1000228 is a critical-severity vulnerability in Ejs, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-11-17.
How severe is CVE-2017-1000228?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-1000228 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.