CVE-2020-28425Public exploitNetwork attack vector

Command execution via shell-interpolated URL argument

Published Aug 2, 2022 · Updated Sep 16, 2024

Command injection in curljs 0.1.2 and earlier allows remote attackers to execute shell commands through a crafted URL argument. index.js places the URL and option strings into a curl command without shell escaping, then passes the assembled string to child_process.exec. Reachability requires a consuming application to pass attacker-controlled input to curljs; injected commands run with that application's OS privileges.

CVSS severity9.8
Critical
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in curljs 0.1.2 and earlier allows remote attackers to execute shell commands through a crafted URL argument. index.js places the URL and option strings into a curl command without shell escaping, then passes the assembled string to child_process.exec. Reachability requires a consuming application to pass attacker-controlled input to curljs; injected commands run with that application's OS privileges.

The record

CVE
CVE-2020-28425
Published
Aug 2, 2022
Updated
Sep 16, 2024
Vendor
Jonathan Crowe
Product
curljs
Classifications
CWE-78, CWE-77, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=0 <unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jonathan Crowe · curljsversion=0 <unspecified

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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.

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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')
CWE-77Improper Neutralization of Special Elements used in a Command ('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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