Multiple XSS Filter Bypasses in validator

published 2017-01-23 9y ago modified 2026-06-17 4mo ago also GHSA-q4qq-fm7q-cwp5 , EUVD-2017-0286

cvss: 6.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits: 0; none known

The validator module before 1.1.0 for Node.js allows remote attackers to bypass the cross-site scripting (XSS) filter via nested forbidden strings.

Patch / fix

fixed in 1

npm validator 1.1.0

Is CVE-2013-7454 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	validator	<1.1.0	1.1.0

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

Node.js rss critical rss

References

nodesecurity.io /advisories/41
mitigation, vendor-advisory
openwall.com /lists/oss-security/2016/04/20/11
mailing-list, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2013-7454
advisory
github.com /advisories/GHSA-q4qq-fm7q-cwp5
advisory
nealpoole.com /blog/2013/07/xss-filter-bypass-in-validator-nodejs-module
web
npmjs.com /advisories/41
web
blog.kotowicz.net /2012/07/codeigniter-210-xssclean-cross-site.html
web

Sources

CVE List CVE-2013-7454
GitHub Advisory GHSA-q4qq-fm7q-cwp5
NVD CVE-2013-7454

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.