{"id":"CVE-2026-45247","published":"2026-05-26T15:16:39Z","modified":"2026-07-24T11:10:00Z","title":"Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability","vendor":"Mirasvit","product":"Mirasvit Full Page Cache Warmer","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"The Mirasvit Full Page Cache Warmer module for Magento 2, before version 1.11.12, contains a deserialization of untrusted data flaw in its CacheWarmer cookie handling. An unauthenticated remote attacker can exploit it without user interaction by sending a crafted serialized PHP object in that cookie, leading to arbitrary code execution on the server through gadget chains available in Magento and its dependencies.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:14:07Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.26157,"percentile":0.97992,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-06-03","dueDate":"2026-06-06","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer ; https://nvd.nist.gov/vuln/detail/CVE-2026-45247","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-05-29","exploitedFirstSeen":"2026-05-29","ransomware":false,"evidence":[{"url":"https://www.imperva.com/blog/imperva-customers-protected-against-cve-2026-45247-in-mirasvit-full-page-cache-warmer-for-magento/","date":"2026-05-29"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-06-03"},{"url":"https://www.recordedfuture.com/blog/june-2026-cve-landscape","date":"2026-07-10"}],"evidenceTotal":3,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 31, 2026","url":"https://otx.alienvault.com/pulse/6ae4aefab0c2191cecd41862","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"}],"provenance":"machine"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"references":[{"url":"https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer","tags":["Release Notes"]},{"url":"https://sansec.io/research/mirasvit-cache-warmer-object-injection","tags":["Third Party Advisory"]},{"url":"https://www.vulncheck.com/advisories/mirasvit-cache-warmer-for-magento-php-object-injection","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45247","tags":["US Government Resource"]},{"url":"https://www.imperva.com/blog/imperva-customers-protected-against-cve-2026-45247-in-mirasvit-full-page-cache-warmer-for-magento/","tags":["Third Party Advisory"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated remote exploit via public-facing web app cookie","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie","start":127,"end":256}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Arbitrary code execution via gadget chains","mappingType":"primary_impact","evidence":[{"from":"description","quote":"to execute arbitrary code on the server","start":411,"end":450}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-31837","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-31837","exploited":true,"exploitedSince":"2026-06-03","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2026-06-04","earliestUrl":"https://github.com/HORKimhab/CVE-2026-45247","repos":[{"name":"HORKimhab/CVE-2026-45247","url":"https://github.com/HORKimhab/CVE-2026-45247","stars":0,"created":"2026-06-04"},{"name":"fevar54/PoC-Funcional---CVE-2026-45247-Mirasvit-Full-Page-Cache-Warmer-RCE-","url":"https://github.com/fevar54/PoC-Funcional---CVE-2026-45247-Mirasvit-Full-Page-Cache-Warmer-RCE-","stars":0,"created":"2026-06-09"}]},"first":{"date":"2026-06-04","source":"PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-45247"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2026-05-26","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45247","provenance":"source"},{"date":"2026-05-29","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.imperva.com/blog/imperva-customers-protected-against-cve-2026-45247-in-mirasvit-full-page-cache-warmer-for-magento/","provenance":"source"},{"date":"2026-06-03","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-06-03","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-31837","provenance":"source"},{"date":"2026-06-04","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-45247","provenance":"source"}],"speed":{"daysToPublicExploit":9,"firstExploitFrom":"PoC-in-GitHub","daysToKev":8},"priority":{"score":74.5,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":5.0,"detail":"added 155 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.6,"detail":"percentile 0.9799"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}