CVE-2026-48356
CRITICAL 9.3 PoC CATALOGUED ALL-YEARSAdobe 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.
VulnCheck KEV reports exploitation for this CVE. These are source-specific reports; review the details and vendor guidance below.
Exploitation likelihood
1.0%chance of exploitation in 30 days · 63rd percentile
Impact if exploited
9.3CVSS 3.1 · CRITICAL · CNA
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ⚠User interaction: A user must take an action (click / open a file)
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
Public PoC or exploit resources are catalogued below.
Listed by the named source; Vulnpedia has not tested these resources.
PoC data: JSON
Resource commands
curl -s https://vulnpedia.com/cve/CVE-2026-48356/poc.jsonMachine-readable PoC index for this CVE (for automation).Search for new PoCs
Search GitHub now — results may be empty or unverified.
Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Affected
Vendors Adobe
Products Adobe Commerce Adobe Commerce B2b Magento Open Source Adobe Commerce Events Commerce Commerce B2b Magento I\/O Events
Weakness (CWE)
- CWE-434: Unrestricted Upload of File with Dangerous Type (CWE-434)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
References and research data (JSON)
Unverified PoC candidates
Catalogue matches for further research. These repositories have not been validated as working exploits.
1 candidate
- https://github.com/abraxas/CVE-2026-48356
CVE-2026-48356 - Magento Open Source - Critical 9.3 - Unauthenticated POST /rest/default/V1/guest-carts/{cartId}/items - Unauthenticated Unrestricted File Upload (PolyShell)
PoC-in-GitHub · CVE-2026-48356
PoC-in-GitHub · CVE-2026-48356 · Updated 2026-10-07T01:06:51Z
Additional exploitation reports
Source-specific reports, separate from CISA KEV. Repeated observations from one source are not independent confirmations.
- VulnCheck KEV · 2026-10-24T00:00:00Z
Source guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Source ransomware assessment: Unknown
VulnCheck KEV · CVE-2026-48356 · Updated 2026-10-24T00:00:00Z - VulnCheck KEV · 2026-10-24T00:00:00ZVulnCheck KEV · CVE-2026-48356
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.4 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.5 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.6 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.7 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.8 |
| Adobe | Commerce | 2.4.9 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.3 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.3.4 |
| Adobe | Commerce B2b | 1.4.2 |
| Adobe | Commerce B2b | 1.4.2 |
| Adobe | Commerce B2b | 1.4.2 |
| Adobe | Commerce B2b | 1.4.2 |
| Adobe | Commerce B2b | 1.4.2 |
| Adobe | Commerce B2b | 1.4.2 |
| Adobe | Commerce B2b | 1.4.2 |
Showing 120 of 171 configuration entries. Full list on NVD.
All CVSS metrics
- CRITICAL 9.3 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - CRITICAL 9.3 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
References
Advisories
- https://helpx.adobe.com/security/products/magento/apsb26-73.html CVE record · adobe · Updated 2026-08-27T22:39:18.114Z
NVD · CVE-2026-48356 · Updated 2026-08-28T00:17:52.187 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-44420 EUVD · EUVD-2026-44420
- https://vulncheck.com/kev VulnCheck KEV · CVE-2026-48356 · Updated 2026-10-24T00:00:00Z
Technical & other
- https://sansec.io/research/magento-cms-block-loader-deepveindrilling VulnCheck KEV · CVE-2026-48356 · Updated 2026-10-24T00:00:00Z
- https://vulncheck.com/xdb/252b3f56152d VulnCheck KEV · 252b3f56152d · Updated 2026-10-24T00:00:00Z
- https://github.com/abraxas/CVE-2026-48356 VulnCheck KEV · 252b3f56152d · Updated 2026-10-24T00:00:00Z
Sources: NVD · CVE.org · All sources and attribution · EPSS