CVE-2026-48356
Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability
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.
CISA due Nov 10, 2026
- Adobe Commerce and Magento
- Critical
- CVSS 9.3
- EPSS 30.58%
- Fixed version listed
What to do
Fixed version listed
- 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.
- CISA deadline for US federal agencies
- Nov 10, 2026
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Adobe Adobe Commerce | through 2.4.9, 2.4.8-p5, 2.4.7-p10, 2.4.6-p15, 2.4.5-p17, 2.4.4-p18 | None listed |
| Adobe Adobe Commerce B2B | through 1.5.3, 1.5.2-p5, 1.4.2-p10, 1.3.4-p17, 1.3.3-p18 | None listed |
| Adobe Magento Open Source | through 2.4.9, 2.4.8-p5, 2.4.7-p10, 2.4.6-p15 | None listed |
| Adobe Adobe Commerce Events | through 1.20.0 | 1.21.0 |
Advisories and fixes
- Vendor advisory helpx.adobe.com
Scores and signals
- Exploitation
- Exploited in the wild
- Severity
- Critical, CVSS 9.3 (v3.1, scored by adobe)
- EPSS
- 30.58% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 27, 2026)
- CISA's SSVC decision points
- Exploitation: active. Automatable: no. Technical impact: total. As of Oct 27, 2026.
- Weakness
- CWE-434: Unrestricted Upload of File with Dangerous Type (CWE-434)
- Vendor
- Adobe, Commerce and Magento
Timeline
- Added to CISA's Known Exploited Vulnerabilities catalog: exploited in the wild. US federal agencies must remediate by 2026-11-10.