GHSA-w72q-x6w3-7rj3
Suggest an improvement- Source
- https://github.com/advisories/GHSA-w72q-x6w3-7rj3
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-w72q-x6w3-7rj3/GHSA-w72q-x6w3-7rj3.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-w72q-x6w3-7rj3
- Withdrawn
- 2026-10-02T22:55:15Z
- Published
- 2026-08-04T18:31:26Z
- Modified
- 2026-10-02T23:00:16Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- 6.1 (Medium) CVSS_V4 - 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 CVSS Calculator
- Summary
- Duplicate Advisory: @a2ui/web_core: `openUrl` permits `javascript:` URI execution via agent-supplied button actions
- Details
-
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This advisory has been withdrawn because it is a duplicate of GHSA-72qq-p3r5-f7wq.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.
- Database specific
{ "cwe_ids": [ "CWE-79" ], "github_reviewed": true, "github_reviewed_at": "2026-10-02T22:55:15Z", "nvd_published_at": "2026-08-04T16:16:20Z", "severity": "MODERATE" }- References
Affected packages
npm / @a2ui/web_core
Package
- Name
- @a2ui/web_core
- View open source insights on deps.dev
- Purl
- pkg:npm/%40a2ui/web_core