CVE-2025-67555: Usestrict Usestrict's Calendly Embedder

Medium severity, CVSS 5.9. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in useStrict UseStrict's Calendly Embedder cal-embedder-lite allows Stored XSS.This issue affects UseStrict's Calendly Embedder: from n/a through <= 1.1.7.2.

Affected products

• Usestrict Usestrict's Calendly Embedder: up to and including 1.1.7.2

Published 2025-12-09. Last modified 2026-10-07.