CVE-2026-45247
Full Page Cache Warmer Deserialization of Untrusted Data in Mirasvit Full Page Cache Warmer. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 3 June 2026.
- Product
- Mirasvit Full Page Cache Warmer
- Added to CISA's catalog
- Federal fix-by date
- Ransomware
- No known use in ransomware campaigns
- Vendor advisories
- Sources
- CISA’s catalog, NVD entry
CISA’s description.
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.
Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.