Critical Vulnerability in Mirasvit Full Page Cache Warmer: Immediate Action Required
In May 2026, a critical vulnerability (CVE-2026-45247) was identified in Mirasvit's Full Page Cache Warmer extension for Magento 2, versions prior to 1.11.12. This flaw allows unauthenticated attackers to execute arbitrary code on affected servers by exploiting a PHP object injection via the 'CacheWarmer' cookie. The vulnerability arises from the unsafe use of PHP's 'unserialize()' function, enabling remote code execution without authentication. ([sansec.io](https://sansec.io/research/mirasvit-cache-warmer-object-injection?utm_source=openai)) The inclusion of this vulnerability in CISA's Known Exploited Vulnerabilities catalog underscores its active exploitation and the significant risk it poses to e-commerce platforms. Organizations using the affected versions are urged to update to version 1.11.12 immediately to mitigate potential breaches and data compromises. ([blog.gridinsoft.com](https://blog.gridinsoft.com/mirasvit-cve-2026-45247-cachewarmer-rce/?utm_source=openai))
Kill Chain