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Description

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.

PUBLISHED Reserved 2026-05-11 | Published 2026-05-26 | Updated 2026-06-04 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA Known Exploited Vulnerability

Date added 2026-06-03 | Due date 2026-06-06

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Problem types

Deserialization of Untrusted Data

Product status

Default status
affected

Any version before 1.11.12
affected

Credits

Sansec finder

References

www.imperva.com/...asvit-full-page-cache-warmer-for-magento/ media-coverage

www.cisa.gov/...erabilities-catalog?field_cve=CVE-2026-45247 government-resource

sansec.io/research/mirasvit-cache-warmer-object-injection technical-description

mirasvit.com/...ngelog/?package=mirasvit/module-cache-warmer release-notes patch

www.vulncheck.com/...warmer-for-magento-php-object-injection third-party-advisory

cve.org (CVE-2026-45247)

nvd.nist.gov (CVE-2026-45247)

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