{"id":"GHSA-w72q-x6w3-7rj3","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URI execution via agent-supplied button actions","details":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-72qq-p3r5-f7wq.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Basic Catalog is enabled by default.","modified":"2026-10-02T23:00:16.785554110Z","published":"2026-08-04T18:31:26Z","withdrawn":"2026-10-02T22:55:15Z","database_specific":{"nvd_published_at":"2026-08-04T16:16:20Z","cwe_ids":["CWE-79"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-10-02T22:55:15Z"},"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"}],"affected":[{"package":{"name":"@a2ui/web_core","ecosystem":"npm","purl":"pkg:npm/%40a2ui/web_core"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.9.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 0.10.2","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-w72q-x6w3-7rj3/GHSA-w72q-x6w3-7rj3.json"}}],"schema_version":"1.9.0","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"}]}