Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability

Technical Severity

CVSS v3.1 Metrics

CRITICAL

9.8 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation Likelihood

EPSS Prediction

6.15 %

Predictive Probability

Percentile Rank

91.0 th

Documented as more likely to be exploited than 91.0% of known CVEs.

Detection Date

Jun 03, 2026

Remediation Due

Jun 06, 2026

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

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

External Intelligence

https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2026-45247