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📦 npm.NET NuGet
Not in CISA KEV
MEDIUM severity

GHSA-7c82-mp33-r854 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in bootstrap-select. O3 Security confirms whether GHSA-7c82-mp33-r854 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Cross-site scripting in bootstrap-select

Also known asCVE-2019-20921
Published
May 7, 2021
Updated
Mar 13, 2026
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Mar 13, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

2 pkgs affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

314other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
bootstrap-selectnpm
168Kdownloads / week

Description

bootstrap-select before 1.13.6 allows Cross-Site Scripting (XSS). It does not escape title values in OPTION elements. This may allow attackers to execute arbitrary JavaScript in a victim's browser.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
📦npmbootstrap-selectall versions1.13.6
.NETNuGetbootstrap-selectall versions1.13.6

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for bootstrap-select. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update bootstrap-select to 1.13.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7c82-mp33-r854 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-7c82-mp33-r854 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-7c82-mp33-r854. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

In OpenShift Service Mesh (OSSM) the openshift-service-mesh/kiali-rhel7 container (which installs the kiali rpm) is behind OpenShift OAuth authentication restricting access to the vulnerable bootstrap-select library to authenticated users only, therefore the impact is low.

Frequently Asked Questions

bootstrap-select before 1.13.6 allows Cross-Site Scripting (XSS). It does not escape title values in OPTION elements. This may allow attackers to execute arbitrary JavaScript in a victim's browser.
O3 Security · Impact-Aware SCA

Is GHSA-7c82-mp33-r854 in your dependencies?

O3 detects GHSA-7c82-mp33-r854 across npm, NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.