SB2019080306 - Reflected cross-site scripting in Magento, Magento Open Source

Description

This security bulletin contains information about 1 security vulnerability.

1) Reflected cross-site scripting (CVE-ID: CVE-2019-7887)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the admin panel when the feature that adds a secret key to the Admin URL is disabled. A remote authenticated administrator can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Install update from vendor's website.

References

• https://snyk.io/vuln/SNYK-PHP-MAGENTOCORE-458771
• https://magento.com/security/patches/magento-2.3.2-2.2.9-and-2.1.18-security-update-23