Vulnerability details
CVE-2026-45247
Actively exploited
Mirasvit Full Page Cache Warmer for Magento 2
Mirasvit Cache Warmer for Magento < 1.11.12 PHP Object Injection
CVSS 4.0
9.3Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Mirasvit | Full Page Cache Warmer for Magento 2 | v < 1.11.12 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://sansec.io/research/mirasvit-cache-warmer-object-injection technical-description
- https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer release-notespatch
- https://www.vulncheck.com/advisories/mirasvit-cache-warmer-for-magento-php-object-injection third-party-advisory
- https://www.imperva.com/blog/imperva-customers-protected-against-cve-2026-45247-in-mirasvit-full-page-cache-warmer-for-magento/ media-coverage
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45247 government-resource
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Details
- Published
- 2026-05-26
- Last updated
- 2026-06-04
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 78 · High
CISA KEV catalog
- Date added
- 2026-06-03
- Due date
- 2026-06-06
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
26.15%
Probability of exploitation in 30 days
97.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-502Deserialization of Untrusted Data