CVE-2026-0533
Published: 22 January 2026
Summary
CVE-2026-0533 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Autodesk Fusion. Its CVSS base score is 8.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 43.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).
Deeper analysis
CVE-2026-0533 is a Stored Cross-site Scripting (XSS) vulnerability, mapped to CWE-79, in the Autodesk Fusion desktop application. The flaw occurs when a maliciously crafted HTML payload is embedded in a design name and subsequently displayed within the delete confirmation dialog. User interaction with this dialog by clicking the payload triggers the XSS execution.
Attackers with local access can exploit this vulnerability with low complexity and no required privileges, though user interaction is necessary. A malicious actor crafts a design file containing the HTML payload in its name and shares it with a target user. When the victim loads the design in Autodesk Fusion and attempts to delete it, the confirmation dialog renders the payload; clicking it enables the attacker to read local files or execute arbitrary code within the context of the Fusion process. The CVSS v3.1 base score is 7.1 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N).
Autodesk has published security advisory adsk-sa-2026-0001 addressing the vulnerability. Patched versions of the Fusion Client are available via dedicated downloaders for macOS (Fusion Client Downloader.dmg) and Windows (Fusion Client Downloader.exe).
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-3890
Vulnerability details
A maliciously crafted HTML payload in a design name, when displayed during the delete confirmation dialog and clicked by a user, can trigger a Stored Cross-site Scripting (XSS) vulnerability in the Autodesk Fusion desktop application. A malicious actor may leverage…
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this vulnerability to read local files or execute arbitrary code in the context of the current process.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stored XSS in desktop app design file enables client-side code execution after user opens file and interacts with dialog (T1203 Exploitation for Client Execution + T1204.002 Malicious File).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and sanitization of untrusted inputs (design names) to block malicious HTML payloads that trigger stored XSS.
Requires filtering of information outputs in the delete confirmation dialog to neutralize embedded scripts before they execute in the user context.
Provides mechanisms to detect and block malicious code (scripts) attempting to execute arbitrary actions or read local files within the Fusion process.