CVE-2026-48356Adobe Commerce Unrestricted File Upload
Vulnerability Summary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NAffected & Patched Versions
- Adobe Commerce
- Adobe Commerce B2b
- Adobe Magento
- Adobe I\/o Events >= 1.6.0 and < 1.21.0
- Adobe I\/o Events 1.21.0
What to do
Patch now. CISA lists this flaw as exploited in the wild and set a federal remediation deadline of Nov 10, 2026.
- Check whether you run Adobe Commerce and which version.
- Update to a patched version listed above, then confirm the new version.
- Review logs and exposed services for signs of earlier compromise.
CISA 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.
CISA KEV Status
Remediation due: Nov 10, 2026 (deadline passed)
Timeline
- Jul 14, 2026Published
- Oct 27, 2026Added to CISA KEV catalog
- Oct 28, 2026Record last modified
- Nov 10, 2026KEV remediation due date
Score, severity and exploitation changes are tracked from the day Watchtower started logging them.
Related Coverage
More Adobe Commerce CVEs
External References
- Vendor Advisoryhttps://helpx.adobe.com/security/products/magento/apsb26-73.html
- Advisoryhttps://sansec.io/research/magento-cms-block-loader-deepveindrilling#indicators-of-compromise
- Advisoryhttps://sansec.io/research/polyshell-mass-attack-wave
- Advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48356
Data last checked: Nov 14, 2026 04:06 UTC