GHSA-w72q-x6w3-7rj3: Duplicate Advisory @a2ui/web_core: `openUrl` Permits `javascript:` URI Vulnerability

MODERATE
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CVSS 6.1
CWE-79
Published
Advisory Summary

GHSA-w72q-x6w3-7rj3 is a MODERATE (CVSS 6.1) @a2ui/web_core: `openurl` permits `javascript:` uri vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves @a2ui/web_core: `openurl` permits `javascript:` uri execution via agent-supplied button actions. Remediation is available in the latest vendor maintenance releases.

GHSA-w72q-x6w3-7rj3 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-w72q-x6w3-7rj3
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Duplicate Advisory
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-w72q-x6w3-7rj3

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@a2ui/web_core fixed: Latest secure release 
npm install @a2ui/web_core@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @a2ui/web_core

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-w72q-x6w3-7rj3, inspect your project dependencies using npm:

npm ls @a2ui/web_core

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls @a2ui/web_core command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where 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. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-72qq-p3r5-f7wq. This link is maintained to preserve external references. ## Original 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.

GHSA-w72q-x6w3-7rj3 Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
@a2ui/web_core
npm/@a2ui/web_core
npm
≥ 0.9.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/a2ui-project/a2ui/security/advisories/GHSA-72qq-p3r5-f7wq
NVD — GHSA-w72q-x6w3-7rj3 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10032

Frequently Asked Questions

What is GHSA-w72q-x6w3-7rj3?
GHSA-w72q-x6w3-7rj3 is a security vulnerability in Duplicate Advisory involving @a2ui/web_core: `openUrl` permits `javascript:` URI execution via agent-supplied button actions under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: @a2ui/web_core.
What version fixes GHSA-w72q-x6w3-7rj3?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is @a2ui/web_core affected?
Yes, @a2ui/web_core is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-w72q-x6w3-7rj3?
GHSA-w72q-x6w3-7rj3 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with GHSA-w72q-x6w3-7rj3?
GHSA-w72q-x6w3-7rj3 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (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.).
How can I check npm dependencies for GHSA-w72q-x6w3-7rj3?
Run the dependency tree command: 'npm ls @a2ui/web_core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w72q-x6w3-7rj3",
  "modified" : "2026-10-02T22:55:15Z",
  "published" : "2026-08-04T18:31:26Z",
  "withdrawn" : "2026-10-02T22:55:15Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: @a2ui/web_core: `openUrl` permits `javascript:` URI execution via agent-supplied button actions",
  "details" : "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-72qq-p3r5-f7wq. This link is maintained to preserve external references.\n\n## Original Description\nThe 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@a2ui/web_core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.9.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 0.10.2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/a2ui-project/a2ui/security/advisories/GHSA-72qq-p3r5-f7wq"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-10032"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-02T22:55:15Z",
    "nvd_published_at" : "2026-08-04T16:16:20Z"
  }
}