Microsoft Microsoft.aspnetcore.components.webassembly.server vulnerabilities

2 CVEs affecting Microsoft Microsoft.aspnetcore.components.webassembly.server, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-96230, published 2026-10-13.

More from Microsoft.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-96230, published 2026-10-13. High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days. Improper neutralization of input during web page generation ('cross-site scripting') in ASP.NET Core allows an unauthorized attacker to execute code over a network.
• CVE-2026-102870, published 2026-10-13. High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days. Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.