CVE-2022-4493Network attack vector

File writes outside extraction directory via ZIP entries

Published Dec 14, 2022 · Updated Apr 15, 2025

Path traversal in SCIFIO before 0.43.3 allows context-dependent attackers to write files outside the extraction directory via crafted ZIP entries. The downloadAndUnpackResource helper joins each untrusted entry name to the target folder and writes it without normalizing the path and verifying containment. The affected helper resides in test-source code, so reachability requires downstream code to invoke it on an attacker-controlled archive; resulting writes use the process's filesystem permissions.

CVSS severity6.3
Medium
EPSS probability0.54%
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 SCIFIO before 0.43.3 allows context-dependent attackers to write files outside the extraction directory via crafted ZIP entries. The downloadAndUnpackResource helper joins each untrusted entry name to the target folder and writes it without normalizing the path and verifying containment. The affected helper resides in test-source code, so reachability requires downstream code to invoke it on an attacker-controlled archive; resulting writes use the process's filesystem permissions.

The record

CVE
CVE-2022-4493
Published
Dec 14, 2022
Updated
Apr 15, 2025
Vendor
SCIFIO
Product
SCIFIO
Classifications
CWE-22, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SCIFIO · SCIFIOversion=n/a

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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')
T1203Exploitation for Client Execution

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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