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Critical · 9.3 CVE-2026-12257 EUVD-2026-43487GHSA-h3q4-w5v4-67hw

Remote code execution in Mura Software’s CMS

Published Jul 13, 2026 · Updated Jul 13, 2026 · Assigned by INCIBE

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.

Affected products

VendorProductAffectedFixed
Mura Software CMS 10.0.712 —

References