CVE-2019-10799Public exploitNetwork attack vector

Arbitrary command execution via unsanitized cleanup path

Published Feb 24, 2020 · Updated Aug 4, 2024

OS command injection in Alex Seifert compile-sass before 1.0.5 allows remote attackers to execute arbitrary commands via a crafted CSS path. The setupCleanupOnExit(cssPath) function in dist/index.js interpolates cssPath directly into an rm -r shell command without neutralizing shell metacharacters. Exploitation requires a consuming Node.js application to pass attacker-controlled data as cssPath and the process to run its SIGINT cleanup handler.

CVSS severity8.2
High
EPSS probability2.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Alex Seifert compile-sass before 1.0.5 allows remote attackers to execute arbitrary commands via a crafted CSS path. The setupCleanupOnExit(cssPath) function in dist/index.js interpolates cssPath directly into an rm -r shell command without neutralizing shell metacharacters. Exploitation requires a consuming Node.js application to pass attacker-controlled data as cssPath and the process to run its SIGINT cleanup handler.

The record

CVE
CVE-2019-10799
Published
Feb 24, 2020
Updated
Aug 4, 2024
Vendor
Alex Seifert
Product
compile-sass
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions prior to 1.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Alex Seifert · compile-sassversion=All versions prior to 1.0.5

Published CVSS scores

8.5NIST NVDAV:N/AC:L/Au:N/C:C/I:P/A:N
8.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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