CVE-2026-45247 CRITICAL

CVE-2026-45247: Mirasvit Cache Warmer for Magento < 1.11.12 PHP Object Injection

Vendor Mirasvit
Product Full Page Cache Warmer for Magento 2
Weakness CWE-502 · Unsafe deserialization
KEV Status Known Exploited
Published May 26, 2026
Last update June 4, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

CISA mandated remediation

02CISA 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.

Key dates

03Disclosure timeline

May 26, 2026 CVE published
June 4, 2026 Record updated

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05Related CVE

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