CVE-2021-23389Public exploitNetwork attack vector

Arbitrary code execution via dynamic path compilation

Published Jul 12, 2021 · Updated Sep 16, 2024

Code injection in Total.js Framework before 3.4.9 allows remote attackers to execute arbitrary code through crafted property paths. U.set() and U.get() concatenate the path into JavaScript source and compile it with the Function constructor before adequately rejecting code tokens. Exploitation requires an application to pass attacker-controlled path strings to either helper; successful code runs with the Node.js process's privileges.

CVSS severity9.8
Critical
EPSS probability3.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Total.js Framework before 3.4.9 allows remote attackers to execute arbitrary code through crafted property paths. U.set() and U.get() concatenate the path into JavaScript source and compile it with the Function constructor before adequately rejecting code tokens. Exploitation requires an application to pass attacker-controlled path strings to either helper; successful code runs with the Node.js process's privileges.

The record

CVE
CVE-2021-23389
Published
Jul 12, 2021
Updated
Sep 16, 2024
Vendor
Total.js
Product
Total.js Framework
Classifications
CWE-94, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 12, 2021CVE 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=unspecified <3.4.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Total.js · Total.js Frameworkversion=unspecified <3.4.9

Published CVSS scores

9.8SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:P/A:P

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-94Improper Control of Generation of Code ('Code Injection')
T1059.007Command and Scripting Interpreter: JavaScript

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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