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CVE-2026-45247Mirasvit Cache Warmer for Magento < 1.11.12 PHP Object Injection
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.
9.3 CRITICALEPSS 26.15%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.3 | CRITICAL | 4.0VulnCheck (CNA) | 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 |
| 9.8 | CRITICAL | 3.1VulnCheck (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CISA required action
⚡ Known exploited · remediation due Jun 6, 2026
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
- CVE ID
- CVE-2026-45247
- Status
- Analyzed
- Assigner (CNA)
- VulnCheck
- Published
- May 26, 2026
- Last modified
- 2026-07-24 11:10 UTC
- Weaknesses
- CWE-502 · Deserialization of Untrusted Data
Affected Products
As published by the CNA in the CVE record.
MirasvitFull Page Cache Warmer for Magento 21 version range
- before 1.11.12
References
- mirasvit.com https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer
- sansec.io https://sansec.io/research/mirasvit-cache-warmer-object-injection
- vulncheck.com https://www.vulncheck.com/advisories/mirasvit-cache-warmer-for-magento-php-object-injection
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45247
- imperva.com https://www.imperva.com/blog/imperva-customers-protected-against-cve-2026-45247-in-mirasvit-full-page-cache-warmer-for-magento/