Mura CMS up to 10.0.711 API Endpoint index.cfm method injection

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k1.62

Summaryinfo

A vulnerability described as critical has been identified in Mura CMS up to 10.0.711. This issue affects some unknown processing of the file index.cfm of the component API Endpoint. The manipulation of the argument method results in injection. This vulnerability is identified as CVE-2026-12257. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Mura CMS up to 10.0.711. It has been classified as critical. Affected is an unknown code block of the file index.cfm of the component API Endpoint. The manipulation of the argument method with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at incibe.es. This vulnerability is traded as CVE-2026-12257 since 06/15/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1055.

By approaching the search of inurl:index.cfm it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 10.0.712 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: CMS 10.0.712

Timelineinfo

06/15/2026 CVE reserved
07/13/2026 +28 days Advisory disclosed
07/13/2026 +0 days VulDB entry created
07/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: incibe.es
Status: Confirmed

CVE: CVE-2026-12257 (🔒)
GCVE (CVE): GCVE-0-2026-12257
GCVE (VulDB): GCVE-100-378096

Entryinfo

Created: 07/13/2026 15:17
Changes: 07/13/2026 15:17 (56)
Complete: 🔍
Cache ID: 216::103

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