SB2026060424 - Remote code execution in Mirasvit Cache Warmer for Magento 2

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Main Vulnerability Database SB2026060424

SB2026060424 - Remote code execution in Mirasvit Cache Warmer for Magento 2

Published: June 4, 2026

Security Bulletin ID SB2026060424
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Critical 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Deserialization of Untrusted Data (CVE-ID: CVE-2026-45247)

CWE-ID: CWE-502 - Deserialization of Untrusted Data

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to deserialization of untrusted data in the CacheWarmer cookie handling plugin when processing storefront requests with a crafted CacheWarmer cookie. A remote attacker can send a specially crafted cookie to execute arbitrary code.

No authentication, admin session, or configuration toggle is required, and exploitation may require a suitable gadget chain from Magento or its dependencies.


Remediation

Install update from vendor's website.

References