CVE-2025-52662
📋 TL;DR
This vulnerability in Nuxt DevTools allows cross-site scripting (XSS) attacks that could extract authentication tokens under certain configurations. It affects Nuxt applications using vulnerable versions of Nuxt DevTools. All users of affected versions should upgrade immediately.
💻 Affected Systems
- Nuxt DevTools
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal authentication tokens and hijack user sessions, potentially gaining unauthorized access to sensitive application data and functionality.
Likely Case
Attackers could execute malicious JavaScript in the context of the Nuxt DevTools interface, potentially stealing session tokens or performing actions on behalf of authenticated users.
If Mitigated
With proper content security policies and input validation, the impact would be limited to the DevTools interface itself without affecting the main application.
🎯 Exploit Status
Exploitation requires the attacker to inject malicious scripts into the DevTools interface, which may require specific conditions or user interaction.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.6.4
Vendor Advisory: https://vercel.com/changelog/cve-2025-52662-xss-on-nuxt-devtools
Restart Required: Yes
Instructions:
1. Update Nuxt DevTools to version 2.6.4 or later using npm or yarn. 2. Restart your Nuxt development server. 3. Verify the update was successful.
🔧 Temporary Workarounds
Disable Nuxt DevTools
allTemporarily disable Nuxt DevTools in development environments until patching is possible.
npm remove @nuxt/devtools
yarn remove @nuxt/devtools
Restrict DevTools Access
allConfigure firewall rules to restrict access to the DevTools interface to trusted IP addresses only.
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to prevent script execution
- Disable or restrict access to Nuxt DevTools interface in production environments
🔍 How to Verify
Check if Vulnerable:
Check your package.json or run 'npm list @nuxt/devtools' to see the installed version. If version is below 2.6.4, you are vulnerable.Check Version:
npm list @nuxt/devtools | grep @nuxt/devtoolsVerify Fix Applied:
After updating, verify the version is 2.6.4 or higher using 'npm list @nuxt/devtools' or check package.json.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript execution in DevTools interface
- Suspicious requests to DevTools endpoints
Network Indicators:
- Malicious script injection attempts in DevTools traffic
- Unexpected token extraction patterns
SIEM Query:
source="nuxt-devtools" AND (event="script_injection" OR event="token_access")