CVE-2021-23430

Name: CVE-2021-23430
Creator: NVD / NIST
Published: 2021-08-24T08:15:22.1+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.78%

Last modified Jun 17, 2026

CVE-2021-23430 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization.. EPSS estimates a 1.78% chance of exploitation in the next 30 days.

Description

All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.78%

75.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Startserver Project	Startserver	All versions

References

https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71Broken Link
https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388Exploit, Third Party Advisory
https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71Broken Link
https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388Exploit, Third Party Advisory

Timeline

Published: Aug 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23430?

All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization.

How severe is CVE-2021-23430?

CVE-2021-23430 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.78% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23430?

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-2021-23430?

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

Scan your code now

Source: NVD / NIST