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Known exploited vulnerability

CVE-2026-48356

criticalCVSS 3.1 9.3In CISA KEVEPSS 47%Published · Adobe

The short answer

CVE-2026-48356 affects Adobe Adobe Commerce and is rated critical (CVSS 9.3). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-10-27: attackers are using it, so patch it first.

What it is

Adobe Commerce is affected by 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. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

Weakness: CWE-434.

Severity

9.3 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Exploited (CISA KEV)

Yes, since Oct 27, 2026

Federal due date Nov 10, 2026

EPSS, next 30 days

47%

Higher than 99% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
None

What CISA says 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…

Affected products

Adobe Commerce, Adobe Commerce B2B, Magento Open Source, Adobe Commerce Events. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2026-48356 being exploited?

Yes. CISA added CVE-2026-48356 to its Known Exploited Vulnerabilities catalog on 2026-10-27, with a federal remediation due date of 2026-11-10.

How do I fix CVE-2026-48356?

CISA's 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…

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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