CVE-2026-48356
Tenable Plugin
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AI Threat Summary
CVE-2026-48356 is a moderate vulnerability affecting Commerce and Magento. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
Description
Adobe Commerce and Magento contain 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.
Attack Chain
Attacker identifies vulnerable Commerce and Magento instances using Shodan, Censys, or active scanning
Attacker crafts malicious payload exploiting CVE-2026-48356 to achieve remote code execution
Attacker executes arbitrary OS commands or shellcode in the context of the vulnerable process
Attacker installs backdoor, cron job, or web shell for persistent access
Attacker uses compromised host as pivot point to access internal network resources
MITRE ATT&CK Techniques
Attacker exploits the vulnerability in an internet-facing service to gain initial access
Post-exploitation shell commands executed through the vulnerability
Attacker downloads malware or tools after gaining code execution
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against Commerce and Magento endpoint — monitor access logs for anomalous params | |
| registry_key | HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backdoor |
Persistence mechanism after successful RCE |
Remediation
Quick Facts
| CVE ID | CVE-2026-48356 |
| CVSS Score | N/A |
| Published | 2026-10-27 |
| Exploited | Yes |
| CISA KEV | Yes |
| PoC | Available |
Affected Products
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Adobe / Commerce and Magento