Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Bootstrap allows Cross-Site Scripting (XSS).This issue affects Bootstrap: from 3.4.1 before 4.0.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Bootstrap | Bootstrap | 3.4.1 – < 4.0.0 | 4.0.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | twitter-bootstrap3 | 3.4.1+dfsg-5 | — |
| Debian 13 | twitter-bootstrap3 | 3.4.1+dfsg-5 | — |
| Debian 12 | twitter-bootstrap3 | 3.4.1+dfsg-3+deb12u2 | — |
| Debian 11 | twitter-bootstrap3 | 3.4.1+dfsg-2+deb11u2 | DLA-4204-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | twitter-bootstrap3 | No fix yet | — |
| Ubuntu 26.04 LTS | twitter-bootstrap3 | No fix yet | — |
| Ubuntu 25.10 | twitter-bootstrap3 | No fix yet | — |
| Ubuntu 24.04 LTS | twitter-bootstrap3 | No fix yet | — |
| Ubuntu 22.04 LTS | twitter-bootstrap3 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | twitter-bootstrap3 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | twitter-bootstrap3 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | twitter-bootstrap3 | No fix yet | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | pki-ca +7 | 10.5.18-27.amzn2.0.3 | ALAS2-2025-2995 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | keycloak-26.5 +4 | No fix yet | — |
| Wolfi rolling | rancher-api-ui | 1.2.3-r3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | bootstrap | 3.4.1 | — | GHSA-q58r-hwc8-rm9j |
Advisories 3
- WID-SEC-2025-1072 Bootstrap: Schwachstelle ermöglicht Cross-Site Scripting BSI CERT-Bund (WID) · Oct 8, 2026
- DLA-4204-1 twitter-bootstrap3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- ALAS2-2025-2995 Moderate: pki-core security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 16, 2025