CVE-2026-48356
Adobe — Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability
Adobe · CWE-434 — Unrestricted upload of dangerous file type · in CISA KEV since 2026-10-27
EVRS 85 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 452 of 2,977 tracked
Raised to the floor for a confirmed exploited vulnerability.
Why it scores 85
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and an EPSS probability of 0.306.
- CISA KEVApplied
- RansomwareDid not apply
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyApplied
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
i\/o events: update to 1.21.0 or later
Affected versions
- commerce
2.4.42.4.52.4.62.4.72.4.82.4.9 - commerce b2b
1.3.31.3.41.4.21.5.21.5.3 - magento
2.4.62.4.72.4.82.4.9 - i\/o events
>= 1.6.0 < 1.21.0
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). 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.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.3 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.306 (98.2nd pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Unknown or none | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2026-11-10 · CISA federal deadline in 13 days | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | None known | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.3 (v3.1), assigned by adobe. | Listed | ENISA EUVD |
Description
NVDAdobe 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.
What CISA says to do