CVE-2024-43373Public exploit

Arbitrary file overwrite via Windows path traversal

Published Aug 15, 2024 · Updated Aug 15, 2024

Path traversal in Webcrack's bundle saver in j4k0xb Webcrack 2.14.0 and earlier allows attackers to overwrite JavaScript files on Windows. The save path uses POSIX dirname, join, and normalize operations, so backslashes in an untrusted module name bypass the path-prefix check. Exploitation requires a crafted bundle to be unpacked and saved; overwriting a Node.js module enables attacker-controlled code to run when that module loads.

CVSS severity6.2
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Webcrack's bundle saver in j4k0xb Webcrack 2.14.0 and earlier allows attackers to overwrite JavaScript files on Windows. The save path uses POSIX dirname, join, and normalize operations, so backslashes in an untrusted module name bypass the path-prefix check. Exploitation requires a crafted bundle to be unpacked and saved; overwriting a Node.js module enables attacker-controlled code to run when that module loads.

The record

CVE
CVE-2024-43373
Published
Aug 15, 2024
Updated
Aug 15, 2024
Vendor
j4k0xb
Product
Webcrack
Classifications
CWE-20, CWE-22, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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 <=2.14.0
  2. Affected versionversion=<= 2.14.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

j4k0xb · Webcrackversion=0 <=2.14.0; version=<= 2.14.0

Published CVSS scores

6.2GitHubCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:L
7.7GitHub CNACVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L
7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.002Malicious File

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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