CVE-2018-3716: simplehttpserver node module suffers from a Cross-Site Scripting vulnerability to a lack of validation of file

Routine

MEDIUM 5.4MITIGATE

CVE-2018-3716 is a medium-severity flaw (CVSS 5.4) affecting simplehttpserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

simplehttpserver node module suffers from a Cross-Site Scripting vulnerability to a lack of validation of file names.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-06-07
Last modified	2026-06-17

Publisher (CNA): HackerOne · Vendor: simplehttpserver project

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

simplehttpserver project simplehttpserver MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls simplehttpserver

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2018-3716?

simplehttpserver: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-3716 being exploited?

CVE-2018-3716 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-2018-3716 affect?

CVE-2018-3716 affects simplehttpserver. Severity is medium (CVSS 5.4). simplehttpserver node module suffers from a Cross-Site Scripting vulnerability to a lack of validation of file names.

How urgent is CVE-2018-3716?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2018-3787 HIGH 7.5 UPGRADE Path traversal in simplehttpserver <v0.2.1 allows listing any file on the server.
CVE-2018-16478 MEDIUM 5.3 UPGRADE A Path Traversal in simplehttpserver versions <=0.2.1 allows to list any file in another folder of web root.

References

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