CVE-2026-12257 – Remote code execution in Mura Software’s CMS

CVE ID :CVE-2026-12257

Published : July 13, 2026, 12:16 p.m. | 1 hour, 13 minutes ago

Description :Versions of Mura CMS prior to 10.0.712 contain a critical remote code execution (RCE) vulnerability. The flaw is located in the endpoint “/index.cfm/_api/json/v1/default”, where the “method” parameter in POST requests is not properly validated or sanitised before being processed by the ColdFusion engine. As a result, a remote attacker could exploit this vulnerability to inject and execute arbitrary CFML (ColdFusion Markup Language) expressions and instantiate malicious Java objects, thereby compromising the system’s security.

Severity: 5.1 | MEDIUM

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