CVE-2014-6393

Name: CVE-2014-6393
Creator: NVD / NIST
Published: 2017-08-09T18:29:00.48+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.14%

Last modified Jun 17, 2026

CVE-2014-6393 is a vulnerability of currently unknown severity. The Express web framework before 3.11 and 4.x before 4.5 for Node.js does not provide a charset field in HTTP Content-Type headers in 400 level responses, which might allow remote attackers to conduct cross-site scripting (XSS) attacks via characters in a non-standard encoding.. EPSS estimates a 1.14% chance of exploitation in the next 30 days.

Description

The Express web framework before 3.11 and 4.x before 4.5 for Node.js does not provide a charset field in HTTP Content-Type headers in 400 level responses, which might allow remote attackers to conduct cross-site scripting (XSS) attacks via characters in a non-standard encoding.

Metrics

EPSS Probability

1.14%

62.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Openjsf	Express	<= 3.10.5
Openjsf	Express	4.0.0
Openjsf	Express	4.1.0
Openjsf	Express	4.1.1
Openjsf	Express	4.1.2
Openjsf	Express	4.2.0
Openjsf	Express	4.3.0
Openjsf	Express	4.3.1
Openjsf	Express	4.3.2
Openjsf	Express	4.4.0
Openjsf	Express	4.4.1
Openjsf	Express	4.4.2
Openjsf	Express	4.4.3
Openjsf	Express	4.4.4
Openjsf	Express	4.4.5

References

https://bugzilla.redhat.com/show_bug.cgi?id=1203190Issue Tracking, Third Party Advisory, VDB Entry
https://nodesecurity.io/advisories/express-no-charset-in-content-type-headerThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1203190Issue Tracking, Third Party Advisory, VDB Entry
https://nodesecurity.io/advisories/express-no-charset-in-content-type-headerThird Party Advisory

Timeline

Published: Aug 9, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-6393?

How severe is CVE-2014-6393?

Severity scoring for CVE-2014-6393 is pending analysis. The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.

How do I fix CVE-2014-6393?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-6393?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST