ACTIVELY EXPLOITED
CVE-2026-45247: Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability
| Vendor | Mirasvit |
|---|---|
| Product | Mirasvit Full Page Cache Warmer |
| Actively exploited | Yes |
| Added to CISA KEV | 3 Jun 2026 |
| CISA federal deadline | 6 Jun 2026 |
| Weakness (CWE) | CWE-502 |
Required action (CISA's text)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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.
SOURCES
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.