Adobe Commerce | Unrestricted Upload of File with Dangerous Type (CWE-434) (CVE-2026-48356) | HOL Guard CVE

Critical · CVSS 9.6CVE-2026-48356

Adobe Commerce | Unrestricted Upload of File with Dangerous Type (CWE-434)

Answer in brief

CVE-2026-48356 records a Critical severity (CVSS 9.6) vulnerability in Adobe Commerce | Unrestricted Upload of File with Dangerous Type (CWE-434). The current sources do not mark it as known exploited. The current feed maps Adobe/Adobe Commerce (generic), Adobe/Adobe Commerce B2B (generic), Adobe/Adobe Commerce Events (generic), Adobe/Magento Open Source (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 14, 2026Updated Aug 27, 2026Source checked Aug 27, 2026First seen by HOL Jul 15, 2026Material review Aug 27, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.6
Exploitation: Not marked as known exploited
Affected software: 4 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 9.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Adobe/Adobe Commerce (generic), Adobe/Adobe Commerce B2B (generic), Adobe/Adobe Commerce Events (generic), Adobe/Magento Open Source (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Adobe/Adobe Commercegeneric	0	Not reported
Adobe/Adobe Commerce B2Bgeneric	0	Not reported
Adobe/Adobe Commerce Eventsgeneric	0	Not reported
Adobe/Magento Open Sourcegeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Adobe/Adobe Commerce, Adobe/Adobe Commerce B2B, Adobe/Adobe Commerce Events.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 15, 2026

Sources and claim methodology

Source referencehelpx.adobe.com

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.