CVE-2026-45247
Mirasvit Cache Warmer for Magento < 1.11.12 PHP Object Injection
Exploited in the wild. In CISA KEV since 2026‑06‑03. Fixed in 1.11.12.
What to do
Find your product and version, then upgrade to the build on the right.
- Mirasvit Full Page Cache Warmer for Magento 2Affected: < 1.11.12Upgrade to: 1.11.12Stated by: CVE record
- Mirasvit Full Page Cache WarmerAffected: < 1.11.12Upgrade to: 1.11.12Stated by: NVD
Versions as the sources state them. Full version matrix after sign-in
Coverage timeline
2 publishersCISA urged patching CVE-2026-45247 in Mirasvit Cache Warmer, which has been exploited in the wild for unauthenticated remote code execution on Magento/Adobe Commerce.
Added to CISA KEV catalog
Sourced from public security reporting — each date is when it was published, not when it happened.
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Listed as exploited in the wild since 2026-06-03.
US federal agencies must remediate by 2026-06-06.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
2.1% chance of exploitation activity in the next 30 days, which ranks it in the 81st percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
12 events over 127 days, from the signal feeds we watch.
- EPSS band changemoderate → low
- EPSS band changemoderate → 0epss band change
- Record updated
- EPSS band changelow → moderate
- EPSS band changelow → moderate
- EPSS band changelow → moderate
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored 9.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
- sansec.io/research/mirasvit-cache-warmer-object-injection
- mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer
- vulncheck.com/advisories/mirasvit-cache-warmer-for-magento-php-object-injection
And 2 more references. See all after sign-in
In the news
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We'll flag the next CVE, public exploit or patch for Mirasvit, not every advisory. This one: actively exploited.
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