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CVE-2018-1002203

25
FAUCET Score

CVE-2018-1002203 describes a directory traversal vulnerability in the unzipper npm library prior to version 0.8.13, allowing attackers to write arbitrary files by crafting a malicious Zip archive with "dot dot slash" sequences. This vulnerability, also known as 'Zip-Slip', has a CVSS score of 5.5 (MEDIUM), indicating a local attack vector with low complexity and high impact on integrity, requiring user interaction. There is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.8.13CPE matchmatch criteria
cpe:2.3:a:unzipper_project:unzipper:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
11.92%
Probability of exploitation in next 30 days
EPSS Percentile
95.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1192 is in the 99th percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: unzipperFixed in: 0.8.13

Vendor Advisories (1)

npmGHSA-884w-698f-927fmedium

Arbitrary File Write via Archive Extraction in unzipper

Jul 27, 2018

References

github.com / snyk/zip-slip-vulnerability
ExploitThird Party Advisory
github.com / ZJONSSON/node-unzipper/commit/2220ddd5b58f6252069a4f99f9475441ad0b50cd
Issue TrackingPatchThird Party Advisory
github.com / ZJONSSON/node-unzipper/pull/59
ExploitIssue TrackingPatchThird Party Advisory
snyk.io / research/zip-slip-vulnerability
ExploitIssue TrackingPatchThird Party Advisory
snyk.io / vuln/npm:unzipper:20180415
ExploitIssue TrackingPatchThird Party Advisory