CVE-2026-48356 in Commerce
Summary
by MITRE • 07/15/2026
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. An attacker could exploit this vulnerability to inject malicious scripts into a web page, 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.
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Analysis
by VulDB Data Team • 07/15/2026
This vulnerability represents a critical security flaw in Adobe Commerce systems where unrestricted file upload functionality allows attackers to upload malicious files with dangerous types that can execute arbitrary code within the context of the current user. The technical implementation fails to properly validate file extensions, content types, or file signatures, creating an attack surface where malicious payloads can be silently uploaded and executed without proper authorization. This weakness directly maps to CWE-434 which describes insecure file upload vulnerabilities where applications accept files from untrusted sources without adequate validation mechanisms.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete session hijacking and account takeover scenarios. When users interact with compromised web pages or visit malicious URLs, the uploaded malicious scripts can inject themselves into legitimate web applications and execute with the privileges of the current user context. This creates a pathway for attackers to escalate privileges, access sensitive data, or maintain persistent access to affected systems. The requirement for user interaction makes this vulnerability particularly dangerous in social engineering campaigns where victims are诱导ed to visit compromised websites or click malicious links.
From an ATT&CK framework perspective, this vulnerability aligns with multiple techniques including T1190 for exploiting vulnerabilities in web applications and T1566 for initial access through malicious files. The attack chain typically begins with reconnaissance to identify vulnerable Adobe Commerce installations followed by crafting malicious payloads that exploit the unrestricted upload functionality. Attackers often leverage this vulnerability as a stepping stone for further compromise, potentially moving laterally within networks or establishing persistence through backdoor scripts.
Mitigation strategies should focus on implementing robust file validation mechanisms including strict extension filtering, content type verification, and mandatory file signature checks. Organizations must ensure that uploaded files are stored in non-executable directories and that proper access controls are enforced. Regular security assessments should include testing for this specific vulnerability using automated scanning tools and manual penetration testing approaches. Additionally, implementing web application firewalls and configuring proper input validation rules can significantly reduce the risk of exploitation, while regular patch management ensures that known vulnerabilities are addressed promptly to prevent successful exploitation attempts.