WordPress Twenty Fifteen Theme - DOM XSS

Overview #

A DOM-based Cross-site Scripting (XSS) vulnerability exists in the WordPress Twenty Fifteen Theme. The vulnerability allows remote attackers to inject arbitrary web script or HTML via DOM manipulation.

Vulnerability Details #

Affected Versions: All versions before patch

Root Cause: Insufficient input validation in client-side JavaScript allows DOM-based XSS attacks.

Exploitation Requirements #

• No authentication required
• Victim must visit a crafted URL

Impact #

Remote attackers can exploit this vulnerability to:

• Execute JavaScript in the victim's browser
• Steal WordPress session cookies
• Perform actions on behalf of users

Proof of Concept #

Details available upon request.

Solution #

Update WordPress and the Twenty Fifteen theme to the latest versions.

References #

• CVE-2015-3429

Timeline:

• [2015-01-01] - Discovered

Credits: Omar Kurt