a2ui up to 0.10.1 Button openUrl url cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in a2ui. The affected element is the function openUrl of the component Button Component. The manipulation of the argument url leads to cross site scripting. This vulnerability is listed as CVE-2026-10032. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in a2ui and classified as problematic. This issue affects the function openUrl of the component Button Component. The manipulation of the argument url with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-10032 since 05/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• a2ui

Version

• 0.9.0
• 0.9.1
• 0.9.1-alpha.0
• 0.9.1-alpha.1
• 0.9.1-alpha.2
• 0.9.1-alpha.3
• 0.9.1-alpha.4
• 0.9.1-alpha.5
• 0.9.2
• 0.10.0
• 0.10.1

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CPE 2.2info

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