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CISA known exploited vulnerability

CVE-2026-45247

Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability

SOURCE FACT

Mirasvit · Mirasvit Full Page Cache Warmer

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.

Required action

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

CISA notes

https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer ; https://nvd.nist.gov/vuln/detail/CVE-2026-45247

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