SB2019091502 - Cross-site scripting in Woody Ad Snippets plugin for WordPress

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2019-16289)

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

The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the winp_item parameter to "/wp-admin/post-new.php". 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.

Example:

http://[host]/wp-admin/post-new.php?post_type=wbcr-snippets&winp_item=phpl159r%22+onload%3Dalert%28document.cookie%29+be0bpc32ao+onload%3Dalert%281%29+zqggm

Remediation

Install update from vendor's website.

References

• https://generaleg0x01.com/2019/09/13/xss-woody/
• https://wordpress.org/plugins/insert-php/#developers