Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability

Mirasvit Mirasvit Full Page Cache Warmer

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. Added to CISA KEV on 2026-06-03 (federal deadline 2026-06-06).

First seen: 3 Jun 2026
Last update: 3 Jun 2026, 12:00 UTC
Identifiers: CVE-2026-45247
Source: CISA KEV
On the menu as: PHP

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Mirasvit Mirasvit Full Page Cache Warmer
Ids: CVE-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. Added to CISA KEV on 2026-06-03 (federal deadline 2026-06-06).

## Steps
1. Search the repo, its CI and infra config for Mirasvit Mirasvit Full Page Cache Warmer. If present, report the version in use and whether it's affected.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-45247") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer https://nvd.nist.gov/vuln/detail/CVE-2026-45247
https://pwned.coffee/i/mirasvit-full-page-cache-warmer-deserialization-of-untru-cve-2026-45247

Sources

Totalone hot coffee