CVE-2025-24964

Remote Code Execution when accessing a malicious website while Vitest API server is listening

HIGH

8.8

CVSS Score

Published: February 4, 2025 at 07:36 PM UTC

Updated: June 17, 2026 at 08:59 AM UTC

1 product affected across 1 vendorVitest

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Severity

HIGH8.8

Exploit prediction

EPSS 0.7%

SSVC

PoC

Description

Vitest is a testing framework powered by Vite. Affected versions are subject to arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking (CSWSH) attacks. When `api` option is enabled (Vitest UI enables it), Vitest starts a WebSocket server. This WebSocket server did not check Origin header and did not have any authorization mechanism and was vulnerable to CSWSH attacks. This WebSocket server has `saveTestFile` API that can edit a test file and `rerun` API that can rerun the tests. An attacker can execute arbitrary code by injecting a code in a test file by the `saveTestFile` API and then running that file by calling the `rerun` API. This vulnerability can result in remote code execution for users that are using Vitest serve API. This issue has been patched in versions 1.6.1, 2.1.9 and 3.0.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vitest · Vitest Devnpm

95%

v ≤ 0.0.125v < 1.6.1v < 2.1.9v < 3.0.51.0.0 ≤ v < 1.6.12.0.0 ≤ v < 2.1.93.0.0 ≤ v < 3.0.5

Affected range stops below 1.6.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.1.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.0.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/vitest-dev/vitest/security/advisories/GHSA-9crc-q9x8-hgqq

References (4)

x_refsource_MISCProduct

Source: [email protected]

https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L32-L46

x_refsource_MISCProduct

Source: [email protected]

https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L66-L76

x_refsource_CONFIRMExploitVendor Advisory

Source: [email protected]

https://github.com/vitest-dev/vitest/security/advisories/GHSA-9crc-q9x8-hgqq

x_refsource_MISCProduct

Source: [email protected]

https://vitest.dev/config/#api

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-1385

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