What the vulnerability does
01Description
The Pollcaster Shortcode Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'height' parameter in the 'pollcaster' shortcode in all versions up to, and including, 1.0. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
The Pollcaster Shortcode Plugin for WordPress contains a cross-site scripting (XSS) vulnerability in versions up to 1.0. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially affecting site visitors and administrators. The vulnerability has scope impact, meaning it can affect components beyond the plugin itself.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers, stealing session tokens or performing actions on their behalf.
Potential impact on your site
04Site Impact
Compromised user accounts, stolen admin credentials, or malware distribution to site visitors.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
November 21, 2025
CVE published
April 8, 2026
Record updated
