CVE-2016-10735 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in org.webjars:bootstrap. 2 public exploit references exist, so weaponization risk is real. A fix is available for org.webjars:bootstrap — see the affected versions and patch details below.
Bootstrap Cross-site Scripting vulnerability
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2016-10735 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
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.
bootstrapnpmDescription
In Bootstrap 3.x before 3.4.0 and 4.x-beta before 4.0.0-beta.2, XSS is possible in the data-target attribute, a different vulnerability than CVE-2018-14041.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.webjars:bootstrap | ≥ 2.0.4&&< 3.4.0 | 3.4.0org.webjars:bootstrap:3.4.0 |
| ☕Maven | org.webjars:bootstrap | ≥ 4.0.0-beta&&< 4.0.0-beta.2 | 4.0.0-beta.2org.webjars:bootstrap:4.0.0-beta.2 |
| 📦npm | bootstrap | ≥ 2.0.4&&< 3.4.0 | 3.4.0npm install bootstrap@3.4.0 |
| 📦npm | bootstrap | ≥ 4.0.0-beta&&< 4.0.0-beta.2 | 4.0.0-beta.2npm install bootstrap@4.0.0-beta.2 |
| 📦npm | bootstrap-sass | ≥ 2.0.4&&< 3.4.0 | 3.4.0npm install bootstrap-sass@3.4.0 |
| .NETNuGet | bootstrap | ≥ 2.0.4&&< 3.4.0 | 3.4.0dotnet add package bootstrap --version 3.4.0 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.webjars:bootstrap, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.webjars:bootstrap to 3.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-10735 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2016-10735 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2016-10735. 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 Hat Enterprise Satellite 5 is now in Maintenance Support 2 phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Satellite 5 Life Cycle: https://access.redhat.com/support/policy/updates/satellite. Red…
| Product | Fixed in | Advisory |
|---|---|---|
| CloudForms Management Engine 5.11 | ansible-runner-0:1.3.4-2.el8ar | RHBA-2019:4199 |
| Red Hat Decision Manager 7 | bootstrap | RHSA-2020:0133 |
| Red Hat Enterprise Linux 7 | ipa-0:4.6.8-5.el7 | RHSA-2020:3936 |
| Red Hat Enterprise Linux 8 | idm:client-8030020200923172426.05ac3f11 | RHSA-2020:4670 |
| Red Hat Enterprise Linux 8 | pki-core:10.6-8030020200911215836.5ff1562f | RHSA-2020:4847 |
| Red Hat JBoss Enterprise Application Platform 7.4.9 | org.jboss.hal/hal-console:3.3.16.Final-redhat-00001 | RHSA-2023:0556 |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 | eap7-hal-console-0:3.3.16-1.Final_redhat_00001.1.el8eap | RHSA-2023:0553 |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 | eap7-hal-console-0:3.3.16-1.Final_redhat_00001.1.el9eap | RHSA-2023:0554 |
Frequently Asked Questions
Is CVE-2016-10735 in your dependencies?
O3 Security finds CVE-2016-10735 across Maven, npm, NuGet dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.