Actively exploited in the wild
Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability
Mirasvit - Mirasvit Full Page Cache Warmer · Listed in the CISA KEV since 2026-06-03. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2026-45247
CriticalCVSS 9.8KEVExploitation Probability (EPSS)
Very high risk98th percentile - higher than 98% of all known CVEs
Summary
Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie.
Risk Assessment
An attacker can remotely execute arbitrary code on the Magento server without authentication, potentially leading to full takeover of the e-commerce platform and customer data theft.
Recommendation
Immediately update the Mirasvit Full Page Cache Warmer plugin to version 1.11.12 or later.
Original NVD description (English source)
Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie. Attackers can exploit the unrestricted call to PHP's native unserialize() function combined with gadget chains available in Magento and its dependencies to execute arbitrary code on the server.