Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 5.5%
CVSS Severity
CVSS v3 Score 6.1
References
Products affected by CVE-2026-3884
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cpe:2.3:a:spin.js:spin.js:1.0.0
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cpe:2.3:a:spin.js:spin.js:1.1.0
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cpe:2.3:a:spin.js:spin.js:1.2.0
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cpe:2.3:a:spin.js:spin.js:1.2.1
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cpe:2.3:a:spin.js:spin.js:1.2.2
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cpe:2.3:a:spin.js:spin.js:1.2.3
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cpe:2.3:a:spin.js:spin.js:1.2.4
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cpe:2.3:a:spin.js:spin.js:1.2.5
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cpe:2.3:a:spin.js:spin.js:1.2.6
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cpe:2.3:a:spin.js:spin.js:1.2.7
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cpe:2.3:a:spin.js:spin.js:1.2.8
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cpe:2.3:a:spin.js:spin.js:1.3.0
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cpe:2.3:a:spin.js:spin.js:1.3.1
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cpe:2.3:a:spin.js:spin.js:1.3.2
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cpe:2.3:a:spin.js:spin.js:1.3.3
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cpe:2.3:a:spin.js:spin.js:2.0.0
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cpe:2.3:a:spin.js:spin.js:2.0.1
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cpe:2.3:a:spin.js:spin.js:2.0.2
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cpe:2.3:a:spin.js:spin.js:2.1.0
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cpe:2.3:a:spin.js:spin.js:2.1.2
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cpe:2.3:a:spin.js:spin.js:2.3.1
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cpe:2.3:a:spin.js:spin.js:2.3.2