Description
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.
Remediation
References
https://github.com/strapi/strapi/releases
https://strapi.io/blog/security-disclosure-of-vulnerabilities-cve
https://www.ghostccamm.com/blog/multi_strapi_vulns/
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CVE-2019-5786 Vulnerability in npm package puppeteer
CVE-2021-21166 Vulnerability in npm package electron
CVE-2021-45105 Vulnerability in maven package org.apache.logging.log4j:log4j-core