- Critical 9.3
- Known exploited (CISA KEV)
CVE-2026-45247
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.
Scores
The facts
- Published
- 26 May 2026
- Last changed
- 24 July 2026
- NVD status
- Analyzed
- Severity
- Critical, CVSS 9.3 out of 10 (version 4.0)
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R… - Weakness
- Affects
- mirasvit full page cache warmer
- Known exploited
- Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 3 June 2026.
- EPSS
- 2.1% chance of exploitation activity in the next 30 days (percentile 81).
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