CVE-2026-10032
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
52/100
Published: 2026-08-04
Modified: 2026-10-23
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
Passive
S:
X
AT:
None
VC:
High
VI:
High
VA:
Low
Description
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.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| a2ui\/web_core | 0.9.0 – 0.10.2 |
References & Advisories (1)
Vendor Advisory