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CVE-2018-1002202

MediumPublished

zip4j before 1.3.3 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry...

Published: Jul 25, 2018
Updated: Aug 5, 2024
Assigning CNA: snyk
Evidence observed: Aug 8, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS probability estimate

2.4%

Low · next 30 days

Percentile: 83.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

zip4j before 1.3.3 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.

Sources

zip4jResearch
CWE-Bench-Java CVE-2018-1002202 versions 1.3.2, 1.3.3
srikanth-lingala__zip4j_CVE-2018-1002202_1-3-2Research
Decompiled source code of zip4j library versions 1.3.2 (vulnerable) and 1.3.3 (fixed) for CVE-2018-1002202 path traversal analysis, part of the CWE-Bench-Java dataset.

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