{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/improper-input-validation/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":9.3,"id":"CVE-2026-27304"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["cve-2026-27304","coldfusion","rce","improper-input-validation"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eAdobe ColdFusion versions 2023.18, 2025.6, and earlier are susceptible to an improper input validation vulnerability (CVE-2026-27304). This flaw allows for arbitrary code execution within the security context of the current user. The vulnerability is exploitable remotely and requires no user interaction, increasing the potential impact. This vulnerability was disclosed on April 14, 2026. Given the severity and ease of exploitation, organizations using affected ColdFusion versions should prioritize patching and implement detection measures immediately.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker identifies a vulnerable ColdFusion server running a version prior to 2023.18 or 2025.6.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious request containing a payload designed to exploit the input validation vulnerability.\u003c/li\u003e\n\u003cli\u003eThe crafted request is sent to a ColdFusion endpoint that processes user-supplied input.\u003c/li\u003e\n\u003cli\u003eDue to the improper input validation, the malicious payload is processed by the ColdFusion server.\u003c/li\u003e\n\u003cli\u003eThe payload executes arbitrary code within the context of the ColdFusion application user.\u003c/li\u003e\n\u003cli\u003eThe attacker gains unauthorized access to the system, potentially escalating privileges.\u003c/li\u003e\n\u003cli\u003eThe attacker can install malware, exfiltrate sensitive data, or perform other malicious activities.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability allows an attacker to execute arbitrary code on the ColdFusion server. This can lead to complete system compromise, including data theft, malware installation, and denial of service. Given the criticality of ColdFusion in many enterprise environments, a successful attack can have significant business impact, leading to financial losses, reputational damage, and legal consequences.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the security patch provided by Adobe as outlined in APSB26-38 to remediate CVE-2026-27304 (reference: \u003ca href=\"https://helpx.adobe.com/security/products/coldfusion/apsb26-38.html)\"\u003ehttps://helpx.adobe.com/security/products/coldfusion/apsb26-38.html)\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for suspicious POST requests targeting ColdFusion endpoints with unusually long or malformed parameters (reference: webserver log source).\u003c/li\u003e\n\u003cli\u003eImplement input validation rules in ColdFusion applications to prevent malicious data from being processed (reference: CWE-20).\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule provided below to detect potential exploitation attempts in your web server logs.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-15T12:00:00Z","date_published":"2026-04-15T12:00:00Z","id":"/briefs/2026-04-coldfusion-rce/","summary":"Adobe ColdFusion versions 2023.18, 2025.6, and earlier are vulnerable to improper input validation, potentially leading to arbitrary code execution without user interaction.","title":"Adobe ColdFusion Improper Input Validation RCE","url":"https://feed.craftedsignal.io/briefs/2026-04-coldfusion-rce/"}],"language":"en","title":"CraftedSignal Threat Feed — Improper-Input-Validation","version":"https://jsonfeed.org/version/1.1"}