SB2016092104 - Cross-site scripting in W3 Total Cache for WordPress

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: N/A)

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. A remote attacker 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://blog.zerial.org/seguridad/vulnerabilidad-cross-site-scripting-en-wordpress-w3-total-cache/
• http://seclists.org/fulldisclosure/2016/Sep/52
• https://sumofpwn.nl/advisory/2016/reflected_cross_site_scripting_vulnerability_in_w3_total_cache_plugin.html
• http://seclists.org/fulldisclosure/2016/Nov/63