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

RBRecent Breaches Vulnerability Intelligence·Oct 27, 2026
CVSS 9.3 · Critical⚠ Actively exploited (CISA KEV)
9.3
CVSS score
Critical
Severity
Active
CISA KEV
No
Ransomware use
Nov 10, 2026
Patch deadline
⚠ Exploited in the wild. CISA added CVE-2026-48356 to its Known Exploited Vulnerabilities catalog on Oct 27, 2026, with a federal patch deadline of Nov 10, 2026 — meaning attackers are actively using it. If you run the affected software, patch it immediately.

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.

Details

AffectedAdobe · Commerce and Magento
WeaknessCWE-434
CVSS base score9.3 (Critical)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
PublishedJul 14, 2026
Added to CISA KEVOct 27, 2026
Federal patch deadlineNov 10, 2026
Known ransomware useNot documented
Check if your data is exposed →

Frequently asked questions

Is CVE-2026-48356 being actively exploited?

Yes — CISA lists CVE-2026-48356 in its Known Exploited Vulnerabilities (KEV) catalog, so it is confirmed exploited in the wild. Patch it as a priority.

What does CVE-2026-48356 affect?

CVE-2026-48356 affects Adobe · Commerce and Magento.

How do I fix CVE-2026-48356?

Apply the vendor’s patch for the affected software. The federal patch deadline was Nov 10, 2026. Then check whether your personal data was exposed in any related breach.

References

Official records: NVD · CISA KEV

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