CVE-2023-22621

Strapi through 4.5.5 allows authenticated Server-Side Template Injection (SSTI) that can be exploited to execute arbitrary code on the server. A remote attacker with access to the Strapi admin panel can inject a crafted payload that executes code on the server into an email template that bypasses the validation checks that should prevent code execution.

• https://github.com/strapi/strapi/releases
• https://strapi.io/blog/security-disclosure-of-vulnerabilities-cve
• https://www.ghostccamm.com/blog/multi_strapi_vulns/