CVE-2021-23360

Name: CVE-2021-23360
Creator: NVD / NIST
Published: 2021-03-21T16:15:12.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.34%

Last modified Jun 17, 2026

CVE-2021-23360 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. This affects the package killport before 1.0.2. If (attacker-controlled) user input is given, it is possible for an attacker to execute arbitrary commands. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

Description

This affects the package killport before 1.0.2. If (attacker-controlled) user input is given, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization. Running this PoC will cause the command touch success to be executed, leading to the creation of a file called success.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

2.34%

81.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Killport Project	Killport	< 1.0.2

References

https://github.com/ssnau/killport/blob/5268f23ea8f152e47182b263d8f7ef20c12a9f28/index.js%23L9Broken Link
https://github.com/ssnau/killport/commit/bec8e371f170a12e11cd222ffc7a6e1ae9942638Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-KILLPORT-1078535Exploit, Patch, Third Party Advisory
https://github.com/ssnau/killport/blob/5268f23ea8f152e47182b263d8f7ef20c12a9f28/index.js%23L9Broken Link
https://github.com/ssnau/killport/commit/bec8e371f170a12e11cd222ffc7a6e1ae9942638Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-KILLPORT-1078535Exploit, Patch, Third Party Advisory

Timeline

Published: Mar 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23360?

How severe is CVE-2021-23360?

CVE-2021-23360 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23360?

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-2021-23360?

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

Scan your code now

Source: NVD / NIST