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.
Published:Mar 11, 2026
Last Modified:May 7, 2026
EPS:Mar 11, 2026
EPSS Score:0.00034
CVSS Score:6.1
Affected Products
Vendor
Product
Action
Vendor
Fgnass
Product
Spin.js
Fgnass
Spin.js
Vendor
Spin.js
Product
Spin.js
Spin.js
Spin.js
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
