What is CVE-2014-9772?

CVE-2014-9772 is a medium-severity vulnerability in Node.js, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-01-23.

How severe is CVE-2014-9772?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Node.js

CVE-2014-9772

The validator package before 2.0.0 for Node.js allows remote attackers to bypass the cross-site scripting (XSS) filter via hex-encoded characters.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-01-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.026 (85.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Node.js

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/97102 (vdb-entry)
www.openwall.com/lists/oss-security/2016/04/20/11 (mailing-list, Mailing List, Third Party Advisory)
nodesecurity.io/advisories/43 (Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2014-9772?: CVE-2014-9772 is a medium-severity vulnerability in Node.js, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-01-23.
How severe is CVE-2014-9772?: Medium severity. CVSS v3 base score is 6.1 out of 10.