by Kastro
Paper/Archive/CVE-2026-12257

CVE-2026-12257

Mura Software CMS — Remote code execution in Mura Software’s CMS

EPSS 0.7%CVSS 9.3
critical.is priorityof 100
39
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 53.0.530 × 2010.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
CMS10.0.712–CNA

Scores by source

INCIBE (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refincibe.es/en/incibe-cert/notices/aviso/remote-code-execution-mura-softwares-cms