Unrestricted File Upload Vulnerability in Adobe ColdFusion

CVE-2026-48276

What is CVE-2026-48276?

CVE-2026-48276 is a significant security vulnerability found in Adobe ColdFusion, a platform widely used for building web applications and dynamic websites. This specific vulnerability is categorized as an Unrestricted File Upload of Dangerous Type, which poses serious risks as it allows an attacker to upload potentially harmful files without any checks or restrictions. When exploited, this flaw can lead to arbitrary code execution in the context of the affected user, enabling attackers to execute malicious scripts, compromise system integrity, and manipulate data. Since exploitation of this vulnerability does not require user interaction, it increases the threat level, making it easier for malicious actors to target organizations using vulnerable versions of ColdFusion.

Potential Impact of CVE-2026-48276

1. Arbitrary Code Execution: The most critical impact is the ability for attackers to execute arbitrary code on the server, which could lead to full system compromise. This level of access could allow unauthorized users to control the server, manipulate data, and install malware.

2. Data Breach Risks: With the capacity to execute arbitrary code, attackers can gain access to sensitive data stored on the server. This could result in the exposure of personally identifiable information (PII), confidential business information, or other sensitive data, leading to privacy violations and potential legal ramifications.

3. Reputation Damage and Operational Disruption: The successful exploitation of this vulnerability could severely damage an organization’s reputation, especially if customer data is compromised. Moreover, the resulting system compromise might lead to significant downtime and operational disruptions, affecting business continuity and financial performance.

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