Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability

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• NewsExploited · CISA KEVMirasvit · Mirasvit Full Page Cache Warmer

  Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability

  CVE-2026-45247

  Mirasvit Full Page Cache Warmer contains a deserialization of untrusted data vulnerability that could allow unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie.

  CISA's required action · due 6 Jun 2026 for U.S. federal civilian agencies

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

  Cited by CISA: mirasvit.com · nvd.nist.gov

  Added to KEV 3 Jun 2026 · Source checked 4 Nov 2026, 16:30 UTC · CISA KEV entry

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