MediumGHSA-9v3m-8fp8-mj99CVE-2019-8331

Bootstrap Vulnerable to Cross-Site Scripting

Published 22 Feb 2019 · Updated 10 Sept 2026

Affected packages

bootstrapnpm

Affected: >=4.0.0 <4.3.1
Fixed in: 4.3.1

Update to the fixed version for your release line, for example:npm install bootstrap@4.3.1

bootstrapnpm

Affected: >=3.0.0 <3.4.1
Fixed in: 3.4.1

Update to the fixed version for your release line, for example:npm install bootstrap@3.4.1

bootstrap-sassnpm

Affected: >=3.0.0 <3.4.1
Fixed in: 3.4.1

Update to the fixed version for your release line, for example:npm install bootstrap-sass@3.4.1

twbs/bootstrapComposer

Affected: >=3.0.0 <3.4.1
Fixed in: 3.4.1

Update to the fixed version for your release line, for example:composer require twbs/bootstrap:^3.4.1

twbs/bootstrapComposer

Affected: >=4.0.0 <4.3.1
Fixed in: 4.3.1

Update to the fixed version for your release line, for example:composer require twbs/bootstrap:^4.3.1

Details

Versions of bootstrap prior to 3.4.1 for 3.x and 4.3.1 for 4.x are vulnerable to Cross-Site Scripting (XSS). The data-template attribute of the tooltip and popover plugins lacks input sanitization and may allow attacker to execute arbitrary JavaScript.

Recommendation

For bootstrap 4.x upgrade to 4.3.1 or later. For bootstrap 3.x upgrade to 3.4.1 or later.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.