CVE-2021-28956

Name: CVE-2021-28956
Creator: NVD / NIST
Published: 2021-03-22T07:15:12.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2021-28956 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The unofficial vscode-sass-lint (aka Sass Lint) extension through 1.0.7 for Visual Studio Code allows attackers to execute arbitrary binaries if the user opens a crafted workspace. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

The unofficial vscode-sass-lint (aka Sass Lint) extension through 1.0.7 for Visual Studio Code allows attackers to execute arbitrary binaries if the user opens a crafted workspace. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Sass Lint Project	Sass Lint	<= 1.0.7

References

https://github.com/glen-84/vscode-sass-lint/compare/v1.0.6...v1.0.7Patch, Release Notes, Third Party Advisory
https://github.com/glen-84/vscode-sass-lint/releasesRelease Notes, Third Party Advisory
https://marketplace.visualstudio.com/items/glen-84.sass-lint/changelogRelease Notes, Vendor Advisory
https://vuln.ryotak.me/advisories/1Third Party Advisory
https://github.com/glen-84/vscode-sass-lint/compare/v1.0.6...v1.0.7Patch, Release Notes, Third Party Advisory
https://github.com/glen-84/vscode-sass-lint/releasesRelease Notes, Third Party Advisory
https://marketplace.visualstudio.com/items/glen-84.sass-lint/changelogRelease Notes, Vendor Advisory
https://vuln.ryotak.me/advisories/1Third Party Advisory

Timeline

Published: Mar 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-28956?

How severe is CVE-2021-28956?

CVE-2021-28956 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2021-28956?

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-2021-28956?

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

Scan your code now

Source: NVD / NIST