CVE-2022-48285Network attack vector

File overwrite via unsanitized archive entry paths

Published Jan 29, 2023 · Updated Aug 3, 2024

Path traversal in JSZip before 3.8.0 allows attackers to supply archive entries that escape an intended extraction directory. The loadAsync path in lib/load.js passed each raw fileNameStr to zip.file without resolving dot-dot components, leaving traversal names in the returned entry map. Exploitation requires consuming code to accept an untrusted ZIP and write entries using those names; resulting file access is bounded by that process's permissions.

CVSS severity6.9
Medium
EPSS probability1.41%
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 JSZip before 3.8.0 allows attackers to supply archive entries that escape an intended extraction directory. The loadAsync path in lib/load.js passed each raw fileNameStr to zip.file without resolving dot-dot components, leaving traversal names in the returned entry map. Exploitation requires consuming code to accept an untrusted ZIP and write entries using those names; resulting file access is bounded by that process's permissions.

The record

CVE
CVE-2022-48285
Published
Jan 29, 2023
Updated
Aug 3, 2024
Vendor
JSZip Project
Product
JSZip
Classifications
CWE-22
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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 <3.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JSZip Project · JSZipversion=0 <3.8.0

Published CVSS scores

6.9GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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