CVE-2018-3717: connect node module before 2.14.0 suffers from a Cross-Site Scripting (XSS) vulnerability due to a lack of val

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MEDIUM 5.4UPGRADE

CVE-2018-3717 is a medium-severity flaw (CVSS 5.4) affecting connect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

connect node module before 2.14.0 suffers from a Cross-Site Scripting (XSS) vulnerability due to a lack of validation of file in directory.js middleware.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-06-07
Last modified	2026-06-17

Publisher (CNA): HackerOne · Vendor: sencha

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-06-07 02:29 UTCPublished CVE record published
2026-06-17 01:57 UTCUpdated Record last modified

sencha connect UPGRADE

Affected: < 2.14.0

Fixed in: 2.14.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls connect

2. UPGRADE to 2.14.0

npm install connect@">=2.14.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-3717?

connect: upgrade to 2.14.0. Exact commands for each OS are on this page.

Is CVE-2018-3717 being exploited?

CVE-2018-3717 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-3717 affect?

CVE-2018-3717 affects connect. Severity is medium (CVSS 5.4). connect node module before 2.14.0 suffers from a Cross-Site Scripting (XSS) vulnerability due to a lack of validation of file in directory.js middleware.

How urgent is CVE-2018-3717?

Priority 42/100. Public exploit reference

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References

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