CVE-2025-31883: Webinarpress

Medium severity, CVSS 4.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPWebinarSystem WebinarPress wp-webinarsystem allows Stored XSS.This issue affects WebinarPress: from n/a through <= 1.33.28.

Affected products

• Webinarpress Webinarpress: up to and including 1.33.28

Published 2025-04-01. Last modified 2026-06-17.