critical Known exploitedREV. 01

CVE-2026-45247Mirasvit Cache Warmer for Magento — object injection to RCE

Mirasvit Full Page Cache Warmer for Magento 2 before 1.11.12 unpacks a serialized object straight out of a cookie, so an unauthenticated attacker can chain existing code in Magento into remote code execution on the store.

YOUR NEXT MOVE

Update the Mirasvit Cache Warmer to 1.11.12 or later now; then check the store for injected admin users, altered templates and unexpected outbound traffic.

Read the risk

THE VITAL STATS
CVSS score
9.3/ 10
CVSS v4.0
EPSS probability
28%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2026-05-26
Added to KEV
2026-06-03
Exploit published
Not recorded
Confidence
high
Kill chain
initial access
MITRE ATT&CK
T1190
Severity
critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attacker needsNetwork access to the storefront; setting a cookie is enough, no account needed.

Fixed inMirasvit Full Page Cache Warmer 1.11.12

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2026-45247 · CRDS 0.1 · Issued 2026-09-24