CVE-2026-12257— Remote code execution in Mura Software’s CMS
Quick assessment
Affected
Mura Software CMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mura Mura CMS是Mura公司的一款内容管理系统软件。 Mura CMS 10.0.712之前版本存在代码注入漏洞，该漏洞源于对端点“/index.cfm/_api/json/v1/default”中POST请求的“method”参数未能正确验证或清理，可能导致远程攻击者注入和执行任意CFML表达式并实例化恶意Java对象，从而危及系统安全。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mura Software | CMS | 10.0.712 |
affected |
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I. Basic Information for CVE-2026-12257
Vulnerability Information
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Vulnerability Title
Remote code execution in Mura Software’s CMS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Mura CMS 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mura Mura CMS是Mura公司的一款内容管理系统软件。 Mura CMS 10.0.712之前版本存在代码注入漏洞，该漏洞源于对端点“/index.cfm/_api/json/v1/default”中POST请求的“method”参数未能正确验证或清理，可能导致远程攻击者注入和执行任意CFML表达式并实例化恶意Java对象，从而危及系统安全。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mura Software | CMS | 10.0.712 | - |
|
II. Public POCs for CVE-2026-12257
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-12257 (1)
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V. Comments for CVE-2026-12257
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