CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting (XSS) via the spin() function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a prototype pollution first, before being able to execute arbitrary JavaScript in the context of the user's browser.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://gist.github.com/ericcornelissen/1a73e28fa50c3009b0eb51ad2fc19f25	Broken Link
https://security.snyk.io/vuln/SNYK-JS-SPINJS-15445079	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:spin.js:spin.js:*:*:*:*:*:node.js:*:*

History

07 May 2026, 18:08

Type	Values Removed	Values Added
CPE		cpe:2.3:a:spin.js:spin.js::::::node.js::*
Summary		(es) Las versiones del paquete spin.js anteriores a la 3.0.0 son vulnerables a Cross-site Scripting (XSS) a través de la función spin() que permite la creación de más de 1 alerta por cada elemento 'target'. Un atacante necesitaría establecer un par clave-valor arbitrario en Object.prototype a través de una URL manipulada, logrando primero una contaminación de prototipos, antes de poder ejecutar JavaScript arbitrario en el contexto del navegador del usuario.
References	~~() https://gist.github.com/ericcornelissen/1a73e28fa50c3009b0eb51ad2fc19f25 -~~	() https://gist.github.com/ericcornelissen/1a73e28fa50c3009b0eb51ad2fc19f25 - Broken Link
References	~~() https://security.snyk.io/vuln/SNYK-JS-SPINJS-15445079 -~~	() https://security.snyk.io/vuln/SNYK-JS-SPINJS-15445079 - Third Party Advisory
First Time		Spin.js spin.js Spin.js

11 Mar 2026, 06:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-11 06:17

Updated : 2026-05-07 18:08

NVD link : CVE-2026-3884

Mitre link : CVE-2026-3884

CVE.ORG link : CVE-2026-3884

JSON object : View

Products Affected

spin.js

spin.js

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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