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CVE-2026-10032

Arbitrary JavaScript Execution via openUrl in @a2ui/web_core PUBLISHED

Description (CNA)

The openUrl function in @a2ui/web_core passes an agent-controlled URL directly to window.open() without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary JavaScript executes in the victim application's browser origin, constituting a stored/reflected XSS with Critical severity. No non-default configuration is required; the Basic Catalog is enabled by default.

Affected (CNA)

Vendor / productVersions
Google / @a2ui/web_coreaffected 0.9.0; affected 0.9.1-alpha.0; affected 0.9.1-alpha.1; affected 0.9.1-alpha.2; affected 0.9.1-alpha.3; affected 0.9.1-alpha.4; affected 0.9.1-alpha.5; affected 0.9.1; affected 0.9.2; affected 0.10.0; affected 0.10.1

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.