CVE-2021-21420

Name: CVE-2021-21420
Creator: NVD / NIST
Published: 2021-04-01T22:15:11.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2021-21420 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. vscode-stripe is an extension for Visual Studio Code. A vulnerability in Stripe for Visual Studio Code extension exists when it loads an untrusted source-code repository containing malicious settings. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

vscode-stripe is an extension for Visual Studio Code. A vulnerability in Stripe for Visual Studio Code extension exists when it loads an untrusted source-code repository containing malicious settings. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. The update addresses the vulnerability by modifying the way the extension validates its settings.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.56%

42.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Stripe	Stripe	< 1.7.3

References

https://github.com/stripe/vscode-stripe/security/advisories/GHSA-j6x4-4622-8vv3Third Party Advisory
https://github.com/stripe/vscode-stripe/security/advisories/GHSA-j6x4-4622-8vv3Third Party Advisory

Timeline

Published: Apr 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21420?

How severe is CVE-2021-21420?

CVE-2021-21420 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21420?

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-2021-21420?

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

Scan your code now

Source: NVD / NIST