{"id":"CVE-2026-53722","aliases":["GHSA-934w-87qh-qr26"],"url":"https://o3.security/vulnerability/CVE-2026-53722","summary":"Nuxt: Reflected XSS in `<NuxtLink>` via unsanitised `javascript:` or `data:` URL","details":"Nuxt is an open-source web development framework for Vue.js. Prior to versions 3.21.7 and 4.4.7, <NuxtLink> did not validate the URL scheme of values bound to its to or href props before rendering them into the href attribute of the underlying <a> element. When an application binds attacker-controlled input (a query parameter, a CMS field, a user-supplied profile URL) to <NuxtLink :to> or :href, the attacker can supply a javascript: or vbscript: URL that is reflected verbatim into the rendered markup. Clicking the link executes the supplied script in the origin of the Nuxt application, resulting in reflected DOM-based cross-site scripting. A data:text/html,... payload reflected through the same sink does not execute in the application's origin but enables a same-tab phishing surface anchored to a legitimate application link. The same value was exposed to consumers of the component's custom slot via the href and route.href props, so applications that re-bind those values to their own anchors were affected identically. This issue has been patched in versions 3.21.7 and 4.4.7.","published":"2026-06-12T13:44:14.592Z","modified":"2026-08-12T03:51:11.972090875Z","cvss":null,"epss":{"score":0.00198,"percentile":0.09903,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"nuxt","fixedVersion":"4.4.7"},{"ecosystem":"npm","name":"nuxt","fixedVersion":"3.21.7"}],"fix":{"url":"https://github.com/nuxt/nuxt/commit/0103ce06fbbbdfa079a7f020ef8ce00121eac4a3","label":"nuxt/nuxt@0103ce0"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53722.json"},{"type":"ADVISORY","url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-934w-87qh-qr26"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53722"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/0103ce06fbbbdfa079a7f020ef8ce00121eac4a3"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/53284043dc21210a25d629d1cec67d3ae557ffd0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:11.972090875Z"}}