{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12257 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-12257 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-12257 is a critical code injection vulnerability in Mura Software CMS, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-12257 and fix it if it is affected.\n\nWhat it is: CVE-2026-12257 is a critical code injection vulnerability in Mura Software CMS, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-12257 in the wild and no public exploit code.\n\nAffected product: Mura Software CMS. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-12257/ (Markdown: https://insights.sbomify.com/CVE-2026-12257/index.md)","id":"CVE-2026-12257","markdown":"https://insights.sbomify.com/CVE-2026-12257/index.md","name":"CVE-2026-12257","record":{"aliases":["GHSA-h3q4-w5v4-67hw"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Mura CMS","requires_auth":"none","summary":"Remote attackers can execute arbitrary code by injecting CFML expressions via the method parameter in Mura CMS.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"INCIBE","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Remote code execution in Mura Software’s CMS","id":"CVE-2026-12257","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Inadequate access control in the Hiperdino REST API","id":"CVE-2026-12258"},"packages":[],"prev":{"headline":"WordPress Fusion Builder plugin \u003c= 3.15.3 - PHP Object Injection vulnerability","id":"CVE-2026-12256"},"products":["CMS"],"published":"2026-07-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-13","vendors":["Mura Software"]},"summary":"Remote attackers can execute arbitrary code by injecting CFML expressions via the method parameter in Mura CMS.","url":"https://insights.sbomify.com/CVE-2026-12257/"}