CVE-2026-0533 is a stored Cross-Site Scripting (XSS) vulnerability classified under CWE-79, affecting Autodesk Fusion desktop application version 2603.0. The vulnerability occurs because the application fails to properly sanitize HTML content embedded within design names. When a malicious actor crafts a design name containing a harmful HTML payload, this payload is stored and later rendered in the delete confirmation dialog. If a user views this dialog and interacts with the malicious content, the embedded script executes within the context of the Fusion application process. This execution context allows the attacker to perform actions such as reading local files or executing arbitrary code, potentially compromising the confidentiality and integrity of the user's data and system. The vulnerability requires no prior authentication but does require user interaction (clicking the malicious payload). The CVSS 3.1 base score is 7.1, reflecting a high severity due to the potential for significant impact on confidentiality and integrity, despite the limited attack vector (local access and user interaction). No patches or known exploits have been reported at the time of publication, but the vulnerability is publicly disclosed and should be addressed promptly. This vulnerability highlights the risks of insufficient input validation and output encoding in desktop applications that render HTML content.

The primary impact of CVE-2026-0533 is on the confidentiality and integrity of systems running Autodesk Fusion 2603.0. An attacker who can insert a malicious design name and convince a user to interact with it can execute arbitrary code or access local files, potentially leading to data theft, unauthorized system manipulation, or further compromise of the host environment. Since the vulnerability requires user interaction and local access to the application, remote exploitation is limited but still feasible in environments where attackers have some foothold or social engineering capabilities. Organizations relying on Autodesk Fusion for design and engineering workflows may face risks of intellectual property theft, disruption of design processes, and potential lateral movement within networks if attackers leverage this vulnerability as an initial access vector. The lack of known exploits in the wild reduces immediate risk but does not eliminate the threat, especially as public disclosure may motivate attackers to develop exploits. The vulnerability's impact is heightened in sectors with sensitive design data, such as aerospace, automotive, manufacturing, and infrastructure development.

1. Monitor Autodesk communications and apply official patches or updates for Fusion as soon as they become available to remediate this vulnerability. 2. Until patches are released, implement strict input validation and sanitization on design names if customization or scripting capabilities exist within the deployment environment. 3. Educate users to be cautious when interacting with delete confirmation dialogs and suspicious design names, emphasizing the risk of clicking unexpected or unknown content. 4. Restrict write permissions to design names and limit who can create or modify designs to reduce the chance of malicious payload insertion. 5. Employ application whitelisting and endpoint protection solutions to detect and block suspicious script execution within the Fusion application context. 6. Consider isolating Autodesk Fusion usage to controlled environments or virtual machines to contain potential exploitation impact. 7. Regularly audit design repositories for anomalous or suspicious entries that could contain malicious payloads. 8. Implement network segmentation to limit lateral movement if a compromise occurs via this vulnerability.