Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2026-48356)

Critical · CVSS 9.3 (NVD) · fetched 2026-10-27 CISA KEV

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.

Remediation

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).

Affected PHP branches

See the source advisory.

Check your site

Source: CISA Known Exploited Vulnerabilities Catalog · retrieved 2026-10-27T16:20:12-04:00 · https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

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