Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type
What to do
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.
CISA deadline 2026-11-10 · due in 13 days · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Adobe Commerce and Magento. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-434.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinedue in 13 days
Sources
- NVD entry for CVE-2026-48356 nvd.nist.gov/vuln/detail/CVE-2026-48356
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- adobe.com www.adobe.com/trust/security/products/commerce/apsb26-73.html
- cisa.gov www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- cisa.gov www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-48356