Every CVE Search/ Get API key

CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting (XSS) via the...

5.1 Medium

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Active

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
None

Exploit likelihood

0.19%Up 0.2 points since Mar 11, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.1

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.

Record
CVE-2026-3884
CVSS 4.0
5.1 MediumCVSS: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
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2026-11105 5.1

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.

Record
EUVD-2026-11105
CVSS 4.0
5.1 MediumCVSS: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
Updated
2026-11-02
GitHub AdvisoriesGHSA-h99f-r56h-cmrp 2.0

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting (XSS) via the...

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.

Record
GHSA-h99f-r56h-cmrp
CVSS 4.0
2.0 LowCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD 2.0

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.

Record
CVE-2026-3884
CVSS 4.0
2.0 LowCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 2.0

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.

Record
CVE-2026-3884
CVSS 4.0
2.0 LowCVSS: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
Weakness
CWE-79
Updated
2026-11-02
OSVDEBIAN-CVE-2026-3884 2.0

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.

Record
DEBIAN-CVE-2026-3884
CVSS 4.0
2.0 LowCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-02
OSVUBUNTU-CVE-2026-3884 2.0

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.

Record
UBUNTU-CVE-2026-3884
CVSS 4.0
2.0 LowCVSS: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
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libjs-spin.js
Debian:12
All versions, plus listed versions
1.2.8+dfsg2-1.11.2.8+dfsg2-2
None known
libjs-spin.js
Debian:13
All versions, plus listed versions
1.2.8+dfsg2-1.11.2.8+dfsg2-2
None known
libjs-spin.js
Debian:14
All versions, plus listed versions
1.2.8+dfsg2-1.11.2.8+dfsg2-2
None known
libjs-spin.js
Ubuntu:16.04:LTS
All versions, plus listed versions
1.2.8+dfsg2-1
None known
libjs-spin.js
Ubuntu:18.04:LTS
All versions, plus listed versions
1.2.8+dfsg2-1
None known
libjs-spin.js
Ubuntu:20.04:LTS
All versions, plus listed versions
1.2.8+dfsg2-1
None known
libjs-spin.js
Ubuntu:22.04:LTS
All versions, plus listed versions
1.2.8+dfsg2-1.1
None known
libjs-spin.js
Ubuntu:24.04:LTS
All versions, plus listed versions
1.2.8+dfsg2-1.1
None known
libjs-spin.js
Ubuntu:25.10
All versions, plus listed versions
1.2.8+dfsg2-1.1
None known
libjs-spin.js
Ubuntu:26.10
All versions, plus listed versions
1.2.8+dfsg2-2
None known
libjs-spin.js
Ubuntu:26.04:LTS
All versions, plus listed versions
1.2.8+dfsg2-1.11.2.8+dfsg2-2
None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-3884 is a medium vulnerability (CVSS 5.1) in Spin.js, published March 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. No source names a fixed version.

References

MoveEnter Open