PT-2026-24582 · Debian+2 · Libjs-Spin.Js+1

Eric Cornelissen + 1 · Published 2026-03-11 · Updated 2026-05-07 · CVE-2026-3884

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions spin.js versions prior to 3.0.0

Description The software is susceptible to Cross-site Scripting (XSS) through the spin() function. This allows an attacker to create multiple alerts for each 'target' element. Exploitation requires prototype pollution, achieved by setting an arbitrary key-value pair on Object.prototype via a crafted URL, enabling the execution of arbitrary JavaScript in the user's browser context.

Recommendations Update to spin.js version 3.0.0 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-3884

Affected Products

Libjs-Spin.Js

Spin.Js

References · 10

• https://ubuntu.com/security/CVE-2026-3884 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-3884 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-3884 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-3884 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3884 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-3884 · Security Note
• https://t.me/cveNotify/162606 · Telegram Post
• https://security.snyk.io/vuln/SNYK-JS-SPINJS-15445079 · Note
• https://gist.github.com/ericcornelissen/1a73e28fa50c3009b0eb51ad2fc19f25 · Note
• https://t.me/CVEtracker/47102 · Telegram Post