CVE-2026-0533 is a stored Cross-Site Scripting (XSS) vulnerability identified in Autodesk Fusion desktop application version 2603.0. The flaw occurs when a malicious actor crafts an HTML payload embedded within a design name. This payload is stored and later rendered in the delete confirmation dialog within the application. When a user views this dialog and clicks on the maliciously crafted design name, the embedded script executes in the context of the current application process. This execution can lead to unauthorized reading of local files or execution of arbitrary code, compromising the confidentiality and integrity of the user's data and system. The vulnerability does not require prior authentication but does require user interaction (clicking the malicious design name). The CVSS v3.1 base score is 7.1, reflecting high severity due to the potential for significant impact on confidentiality and integrity with relatively low attack complexity. No patches are currently linked, and no known exploits have been reported in the wild. The vulnerability is classified under CWE-79, indicating improper neutralization of input during web page generation. Autodesk Fusion is widely used in design and engineering workflows, making this vulnerability particularly relevant to organizations relying on this software for critical design processes.

For European organizations, the impact of CVE-2026-0533 can be substantial, especially in sectors such as manufacturing, automotive, aerospace, and industrial design where Autodesk Fusion is commonly used. Exploitation could lead to unauthorized access to sensitive design files, intellectual property theft, or execution of malicious code that could further compromise internal systems. The confidentiality of proprietary designs and project data is at risk, potentially leading to competitive disadvantages or regulatory compliance issues under GDPR if personal or sensitive data is involved. Although availability is not directly impacted, the integrity of design data and the trustworthiness of the design environment could be undermined, causing operational disruptions. The requirement for user interaction limits mass exploitation but targeted spear-phishing or insider threat scenarios remain plausible. The lack of known exploits in the wild suggests a window of opportunity for proactive mitigation before widespread attacks occur.

1. Immediately implement strict input validation and sanitization on all user-supplied data fields within Autodesk Fusion, especially design names, to neutralize HTML or script content before rendering. 2. Monitor Autodesk’s security advisories closely and apply official patches or updates as soon as they become available. 3. Educate users on the risks of interacting with unexpected or suspicious design names, particularly in shared or collaborative environments. 4. Employ application whitelisting and endpoint protection solutions to detect and block unauthorized code execution within the Fusion application context. 5. Restrict permissions and access controls to limit who can create or modify design names, reducing the attack surface. 6. Consider isolating Autodesk Fusion usage to segmented network zones to contain potential exploitation impact. 7. Conduct regular security audits and penetration testing focusing on input handling and UI rendering components of Autodesk Fusion deployments. 8. Implement logging and monitoring to detect anomalous behaviors indicative of exploitation attempts, such as unusual file access or script execution patterns.