{"id":"CVE-2026-48356","published":"2026-07-14T20:17:08Z","modified":"2026-10-28T13:34:50Z","title":"Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability","vendor":"Adobe","product":"Commerce and Magento","tier":"core","eol":null,"description":{"text":"Adobe Commerce is affected by an Unrestricted Upload of File with Dangerous Type vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.","provenance":"source","from":"NVD"},"summary":{"text":"Adobe Commerce and Magento contain an unrestricted upload of file with dangerous type flaw, which allows the upload of files that can be executed by the server. An attacker can achieve arbitrary code execution in the context of the current user, potentially gaining elevated access or control over a victim's account or session, but only if the victim visits a maliciously crafted URL or interacts with a compromised web page, with no authentication required and the scope changed.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:11:00Z"},"cvss":{"score":9.3,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.44579,"percentile":0.98767,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-10-27","dueDate":"2026-11-10","ransomware":false,"requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"https://www.adobe.com/trust/security/products/commerce/apsb26-73.html ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-48356","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-10-24","exploitedFirstSeen":"2026-10-24","ransomware":false,"evidence":[{"url":"https://sansec.io/research/magento-cms-block-loader-deepveindrilling","date":"2026-10-24"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-10-27"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":7,"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":"deepveindrilling.com: Magento CMS block loader hits 953 stores","url":"https://otx.alienvault.com/pulse/6ae250b362165e0f75808fa3","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Hackers Infect 953 Online Stores With Malicious JavaScript That Evades Security Scanners","url":"https://otx.alienvault.com/pulse/6ae0671b49ae6aa9242d1e69","created":"2026-10-27"},{"name":"deepveindrilling.com: Magento CMS block loader hits 953 stores","url":"https://otx.alienvault.com/pulse/6add9cbb9d565685946f59b0","created":"2026-10-25"},{"name":"Known_Cve | Jul 23, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6a60d50adbbf881cc99f29d3","created":"2026-07-22"}],"provenance":"machine"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"references":[{"url":"https://helpx.adobe.com/security/products/magento/apsb26-73.html","tags":["Vendor Advisory"]},{"url":"https://sansec.io/research/magento-cms-block-loader-deepveindrilling#indicators-of-compromise","tags":["Third Party Advisory"]},{"url":"https://sansec.io/research/polyshell-mass-attack-wave","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48356","tags":["US Government Resource"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: user visits malicious page triggers exploitation","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"a victim must visit a maliciously crafted URL or interact with a compromised web page","start":323,"end":408}],"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 as current user","mappingType":"primary_impact","evidence":[{"from":"description","quote":"could result in arbitrary code execution in the context of the current user","start":100,"end":175}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-44420","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-44420","exploited":true,"exploitedSince":"2026-10-27","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2026-09-26","earliestUrl":"https://github.com/abraxas/CVE-2026-48356","repos":[{"name":"abraxas/CVE-2026-48356","url":"https://github.com/abraxas/CVE-2026-48356","stars":0,"created":"2026-09-26"}]},"first":{"date":"2026-09-26","source":"PoC-in-GitHub","url":"https://github.com/abraxas/CVE-2026-48356"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2026-07-14","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48356","provenance":"source"},{"date":"2026-09-26","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/abraxas/CVE-2026-48356","provenance":"source"},{"date":"2026-10-24","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://sansec.io/research/magento-cms-block-loader-deepveindrilling","provenance":"source"},{"date":"2026-10-27","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-10-27","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-44420","provenance":"source"}],"speed":{"daysToPublicExploit":74,"firstExploitFrom":"PoC-in-GitHub","daysToKev":105},"priority":{"score":78.3,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":10.0,"detail":"added 7 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.75,"detail":"percentile 0.9877"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo"},{"name":"Mentioned in OTX pulses","points":2.05,"detail":"7 pulses"},{"name":"CVSS severity","points":6.51,"detail":"base score 9.3"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}