Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability
Adobe — Commerce and Magento
- Added to KEV catalog
- 27 October 2026
- Federal remediation due date
- 10 November 2026
- Weakness classification (CWE)
- CWE-434
AI Breakdown
What it is
Adobe Commerce and Magento contain a vulnerability that allows the unrestricted upload of dangerous files. Attackers can exploit this flaw to execute arbitrary code within the context of the active user session. This can lead to an attacker gaining elevated privileges or full control over the victim's account and session.
Why it matters
This vulnerability is catalogued by CISA due to active exploitation in the wild, posing an immediate threat to organizations running these platforms. While its use in ransomware campaigns is currently unknown, unauthorized code execution can severely compromise e-commerce operations and sensitive data. Unpatched internet-facing systems are at high risk of takeover and must be addressed urgently.
Recommended action
Immediately apply the vendor mitigations following Adobe's instructions and CISA's BOD 26-04 guidance. Evaluate all internet-exposed assets, adhere to forensics triage requirements, and follow applicable guidance for cloud services. If valid mitigations cannot be applied, discontinue using the vulnerable product to prevent potential compromise.
AI-generated from CISA and NVD data — treat as a starting point, not a substitute for your own risk assessment.
CISA Description
Adobe Commerce and Magento contain 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.
Required action
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
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