CVE-2025-53092: Strapi

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Strapi is an open source headless content management system. Strapi versions prior to 5.20.0 contain a CORS misconfiguration vulnerability in default installations. By default, Strapi reflects the value of the Origin header back in the Access-Control-Allow-Origin response header without proper validation or whitelisting. This allows an attacker-controlled site to send credentialed requests to the Strapi backend. An attacker can exploit this by hosting a malicious site on a different origin (e.g., different port) and sending requests with credentials to the Strapi API. The vulnerability is fixed in version 5.20.0. No known workarounds exist.

Affected products

• Strapi Strapi: before 5.20.0 (fixed in 5.20.0)

Published 2025-10-16. Last modified 2026-06-17.