CVE-2017-6099 PayPal PHP Merchant SDK Cross-site scripting (XSS) vulnerability
Remote attackers can inject arbitrary web script or HTML via the token parameter in the PayPal PHP Merchant SDK.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-6099?
CVE-2017-6099 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Feb 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2017-6099?
2 open source packages ship an affected version, including paypal/merchant-sdk-php. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
paypal/merchant-sdk-php Packagist | From 3.0.0 | 3.12.0 |
paypal/merchant-sdk-php Packagist | From 3.0.0 | 3.12.0 |
Products include Paypal Merchant-Sdk-Php.
How do I fix CVE-2017-6099?
Upgrade paypal/merchant-sdk-php to 3.12.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2017-6099 being exploited?
There is no known exploitation of CVE-2017-6099 in the wild and no public exploit code.
Sources
Also known as GHSA-p4g7-wjhq-9r2h.