CVE-2018-1002202

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 12.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-07-25 · updated 2026-06-17
Weakness: CWE-22

Description

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'.

Affected products

zip4j: before 1.3.3 — fixed in 1.3.3

How to fix

Upgrade to a fixed version: zip4j 1.3.3. Check the vendor advisory for mitigations.

References

https://github.com/snyk/zip-slip-vulnerability
https://snyk.io/research/zip-slip-vulnerability
https://snyk.io/vuln/SNYK-JAVA-NETLINGALAZIP4J-31679
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbmu03895en_us
https://github.com/snyk/zip-slip-vulnerability
https://snyk.io/research/zip-slip-vulnerability
https://snyk.io/vuln/SNYK-JAVA-NETLINGALAZIP4J-31679
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbmu03895en_us

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