Vitest is a testing framework powered by Vite. From 4.0.17 until 4.1.6 and 5.0.0-beta.3, Vitest Browser Mode served /__vitest_test__/ with the otelCarrier query parameter inserted directly into an inline module script, allowing a crafted browser-runner URL to execute arbitrary JavaScript in the Vitest server origin and recover VITEST_API_TOKEN for authenticated API calls. This issue is fixed in versions 4.1.6 and 5.0.0-beta.3.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 7
https://github.com/vitest-dev/vitest/commit/18af98cee1830604d57f6a02bf28f8067cd…
security-advisories@github.com
https://github.com/vitest-dev/vitest/commit/3514f9fa135c90e1c35754fc4d27c9cf351…
security-advisories@github.com
https://github.com/vitest-dev/vitest/pull/10283
security-advisories@github.com
https://github.com/vitest-dev/vitest/pull/10285
security-advisories@github.com
https://github.com/vitest-dev/vitest/releases/tag/v4.1.6
security-advisories@github.com
https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3
security-advisories@github.com
https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp
security-advisories@github.com