Vulnerability · CVE-2026-45247
Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability
Published May 26, 2026 · catalog updated Jul 24, 2026 · full page cache warmer
Patch now
CVE-2026-45247 is in the CISA known-exploited catalog, due Jun 6, 2026. Confirm full page cache warmer against the vendor advisory and apply that fix. The CVSS score does not change the priority.
- Severity
- Critical9.3
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 2.08%
- Remediation
- Remediation guidance
- Affected products
- cpe mirasvit/full page cache warmer · vendor Mirasvit Mirasvit Full Page Cache Warmer
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe mirasvit/full page cache warmerversion unspecified
- vendor Mirasvit Mirasvit Full Page Cache Warmerversion unspecified
How to fix CVE-2026-45247
Recommended remediation
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 due date Jun 6, 2026.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2026-45247 is in the CISA known-exploited catalog, due Jun 6, 2026. Confirm full page cache warmer against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Affected version ranges are not on this record. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
What should an analyst verify?
CWE-502: Deserialization of Untrusted Data. EPSS 2.08%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 26, 2026 · Catalog
Detected
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 de
Jun 3, 2026 · CISA KEV
Known exploited
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Jun 6, 2026 · CISA KEV
Remediation due
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Jul 24, 2026 · Catalog
Updated
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 de
Jul 24, 2026 · NIST NVD
Updated
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 de
Sources
- CISA KEVConfirmed exploitationCVE-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.gov - CVE.orgVulnerability recordCVE-2026-45247
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-45247
30-day exploitation probability 2.1%
first.org - NIST NVDVulnerability recordCVE-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
nvd.nist.gov - VulnCheck KEVConfirmed exploitationCVE-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.
vulncheck.com
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.