CVE-2025-52662
MEDIUMCVE-2025-52662 is a medium-severity (CVSS 6.9) Cross-site Scripting (XSS) vulnerability in @nuxt/devtools. O3 Security confirms whether CVE-2025-52662 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Nuxt DevTools vulnerable to cross-site scripting (XSS)
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
@nuxt/devtoolsnpmDescription
A vulnerability in Nuxt DevTools has been fixed in version 2.6.4*. This issue may have allowed Nuxt auth token extraction via XSS under certain configurations. All users are encouraged to upgrade.
More details: https://vercel.com/changelog/cve-2025-52662-xss-on-nuxt-devtools
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @nuxt/devtools | all versions | 2.6.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @nuxt/devtools. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update @nuxt/devtools to 2.6.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-52662 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2025-52662 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2025-52662. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-52662 in your dependencies?
O3 detects CVE-2025-52662 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.