Medium
libjs-spin.js — security advisory
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.
- Products
- libjs-spin.js
- Affected versions
- 1.2.8+dfsg2-1, 1.2.8+dfsg2-1.1, 1.2.8+dfsg2-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-3884
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:02 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-3884
libjs-spin.js
Fixed versions: Not specified
libjs-spin.js
Fixed versions: Not specified
libjs-spin.js
Fixed versions: Not specified
libjs-spin.js
Fixed versions: Not specified
libjs-spin.js
Fixed versions: Not specified
libjs-spin.js
Fixed versions: Not specified
libjs-spin.js
Fixed versions: Not specified
libjs-spin.js
Fixed versions: Not specified
Complete source record
{
"id": "9e5c5abff0894c2c0bcaf3ff11e9e577ee77bd3baf851cc282194c1bb051677c",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-3884",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-3884",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-3884",
"products": [
{
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"evidence": "/affected/0/package/name"
},
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"affected_versions": [
{
"value": "1.2.8+dfsg2-1",
"evidence": "/affected/0/versions"
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{
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{
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"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-3884",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P"
},
{
"type": "Ubuntu",
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"affected": [
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"package": {
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"purl": "pkg:deb/ubuntu/libjs-spin.js?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.2.8+dfsg2-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3884.json"
},
"ecosystem_specific": {
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},
"versions": [
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"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.2.8+dfsg2-1"
],
"database_specific": {
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},
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"package": {
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"purl": "pkg:deb/ubuntu/libjs-spin.js?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.2.8+dfsg2-1.1"
],
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"ecosystem": "Ubuntu:24.04:LTS"
},
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},
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"ecosystem": "Ubuntu:26.10"
},
"versions": [
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],
"database_specific": {
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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],
"modified": "2026-10-17T13:00:03.070492341Z",
"provider": "osv",
"upstream": [
"CVE-2026-3884"
],
"references": [
"https://ubuntu.com/security/CVE-2026-3884",
"https://www.cve.org/CVERecord?id=CVE-2026-3884",
"https://gist.github.com/ericcornelissen/1a73e28fa50c3009b0eb51ad2fc19f25",
"https://security.snyk.io/vuln/SNYK-JS-SPINJS-15445079"
]
},
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"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360196,
"published_at": "2026-03-11T06:17:00+00:00"
}