CVE-2019-5423: Path traversal vulnerability in http-live-simulator npm package version 1.0.5 allows arbitrary path to be acce

Q: How do I fix CVE-2019-5423?

http-live-simulator: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2019-5423 being exploited?

CVE-2019-5423 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-5423 affect?

CVE-2019-5423 affects http-live-simulator. Severity is high (CVSS 7.5). Path traversal vulnerability in http-live-simulator npm package version 1.0.5 allows arbitrary path to be accessed on the file system by a remote attacker.

Q: How urgent is CVE-2019-5423?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEDOWNGRADE

CVE-2019-5423 is a high-severity flaw (CVSS 7.5) affecting http-live-simulator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Path traversal vulnerability in http-live-simulator npm package version 1.0.5 allows arbitrary path to be accessed on the file system by a remote attacker.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.8% (top 13%)
CISA exploited list	No
Weakness	CWE-22
Published	2019-04-03
Last modified	2026-06-17

Publisher (CNA): HackerOne · Vendor: http-live-simulator project

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

Am I affected?

Timeline

2019-04-03 15:29 UTCPublished CVE record published
2026-06-17 02:37 UTCUpdated Record last modified

http-live-simulator project http-live-simulator DOWNGRADE

Affected: 1.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.5

1. Check installed version

npm ls http-live-simulator

2. No fixed release: DOWNGRADE to a release before 1.0.5

npm view http-live-simulator versions npm install http-live-simulator@"<1.0.5"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2019-5423?

http-live-simulator: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-5423 being exploited?

CVE-2019-5423 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-2019-5423 affect?

CVE-2019-5423 affects http-live-simulator. Severity is high (CVSS 7.5). Path traversal vulnerability in http-live-simulator npm package version 1.0.5 allows arbitrary path to be accessed on the file system by a remote attacker.

How urgent is CVE-2019-5423?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

Software pages

npm packages vulnerabilities

Related CVEs

CVE-2018-16479 HIGH 7.5 UPGRADE Path traversal vulnerability in http-live-simulator <1.0.7 causes unauthorized access to arbitrary files on di

References

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