CVE-2018-1002203

Name: CVE-2018-1002203
Creator: NVD / NIST
Published: 2018-07-25T17:29:01.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 11.92%

Last modified Jun 17, 2026

CVE-2018-1002203 is a vulnerability of currently unknown severity. unzipper npm library before 0.8.13 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'.. EPSS estimates a 11.92% chance of exploitation in the next 30 days.

Description

unzipper npm library before 0.8.13 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'.

Metrics

EPSS Probability

11.92%

95.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Unzipper Project	Unzipper	< 0.8.13

References

https://github.com/ZJONSSON/node-unzipper/commit/2220ddd5b58f6252069a4f99f9475441ad0b50cdIssue Tracking, Patch, Third Party Advisory
https://github.com/ZJONSSON/node-unzipper/pull/59Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/snyk/zip-slip-vulnerabilityExploit, Third Party Advisory
https://snyk.io/research/zip-slip-vulnerabilityExploit, Issue Tracking, Patch, Third Party Advisory
https://snyk.io/vuln/npm:unzipper:20180415Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/ZJONSSON/node-unzipper/commit/2220ddd5b58f6252069a4f99f9475441ad0b50cdIssue Tracking, Patch, Third Party Advisory
https://github.com/ZJONSSON/node-unzipper/pull/59Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/snyk/zip-slip-vulnerabilityExploit, Third Party Advisory
https://snyk.io/research/zip-slip-vulnerabilityExploit, Issue Tracking, Patch, Third Party Advisory
https://snyk.io/vuln/npm:unzipper:20180415Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jul 25, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1002203?

How severe is CVE-2018-1002203?

Severity scoring for CVE-2018-1002203 is pending analysis. The EPSS model estimates a 11.92% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1002203?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1002203?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST