CVE-2018-14042: Bootstrap Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-7mvr-5x2g-wfc8
Share
CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2018-14042 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Bootstrap libraries in the RubyGems ecosystem. The issue involves bootstrap cross-site scripting vulnerability. Remediation is available by upgrading affected packages to version 4.1.2, 3.4.0.

CVE-2018-14042 at a Glance

CVE Identifier CVE-2018-14042
GHSA Identifier GHSA-7mvr-5x2g-wfc8
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Bootstrap
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2018-14042

To remediate this vulnerability, upgrade all affected Bootstrap dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

bootstrap fixed: 4.1.2 
Upgrade bootstrap to 4.1.2
bootstrap fixed: 3.4.0 
Upgrade bootstrap to 3.4.0
bootstrap fixed: 4.1.2 
npm install bootstrap@4.1.2
bootstrap fixed: 3.4.0 
npm install bootstrap@3.4.0
org.webjars:bootstrap fixed: 4.1.2 
<dependency>
    <groupId>org.webjars</groupId>
    <artifactId>bootstrap</artifactId>
    <version>4.1.2</version>
</dependency>
org.webjars:bootstrap fixed: 3.4.0 
<dependency>
    <groupId>org.webjars</groupId>
    <artifactId>bootstrap</artifactId>
    <version>3.4.0</version>
</dependency>
twbs/bootstrap fixed: 4.1.2 
Upgrade twbs/bootstrap to 4.1.2
twbs/bootstrap fixed: 3.4.0 
Upgrade twbs/bootstrap to 3.4.0
bootstrap fixed: 4.1.2 
Upgrade bootstrap to 4.1.2
bootstrap fixed: 3.4.0 
Upgrade bootstrap to 3.4.0
bootstrap-sass fixed: 3.4.0 
Upgrade bootstrap-sass to 3.4.0
bootstrap-sass fixed: 3.4.0 
npm install bootstrap-sass@3.4.0
bootstrap.sass fixed: 4.1.2 
Upgrade bootstrap.sass to 4.1.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for bootstrap

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-14042, inspect your project dependencies for Bootstrap:

inspect dependencies for bootstrap

Analyze the terminal output to locate any version of Bootstrap in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Bootstrap, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In Bootstrap starting in version 2.3.0 and prior to versions 3.4.0 and 4.1.2, XSS is possible in the data-container property of tooltip. This is similar to CVE-2018-14041.

CVE-2018-14042 Affected Bootstrap Versions

13 component(s)
Fixed Versions:
4.1.23.4.0
Product / Package Ecosystem Affected Versions Fixed Version
bootstrap
gem/bootstrap
RubyGems
≥ 4.0.0
< 4.1.2
4.1.2
bootstrap
gem/bootstrap
RubyGems
≥ 2.3.0
< 3.4.0
3.4.0
bootstrap
npm/bootstrap
npm
≥ 4.0.0
< 4.1.2
4.1.2
bootstrap
npm/bootstrap
npm
≥ 2.3.0
< 3.4.0
3.4.0
org.webjars:bootstrap
maven/org.webjars/bootstrap
Maven
≥ 4.0.0
< 4.1.2
4.1.2
org.webjars:bootstrap
maven/org.webjars/bootstrap
Maven
≥ 2.3.0
< 3.4.0
3.4.0
twbs/bootstrap
 Packagist
≥ 4.0.0
< 4.1.2
4.1.2
twbs/bootstrap
 Packagist
≥ 2.3.0
< 3.4.0
3.4.0
bootstrap
nuget/bootstrap
NuGet
≥ 4.0.0
< 4.1.2
4.1.2
bootstrap
nuget/bootstrap
NuGet
≥ 2.3.0
< 3.4.0
3.4.0
bootstrap-sass
gem/bootstrap-sass
RubyGems
≥ 2.3.0
< 3.4.0
3.4.0
bootstrap-sass
npm/bootstrap-sass
npm
≥ 2.0.4
< 3.4.0
3.4.0
bootstrap.sass
nuget/bootstrap.sass
NuGet
≥ 4.0.0
< 4.1.2
4.1.2

References

NVD — CVE-2018-14042 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14042
Bootstrap Source Repository REPOSITORY
https://github.com/twbs/bootstrap/issues/26423
Bootstrap Source Repository REPOSITORY
https://github.com/twbs/bootstrap/issues/26428
Bootstrap Source Repository REPOSITORY
https://github.com/twbs/bootstrap/issues/26628
Bootstrap Source Repository REPOSITORY
https://github.com/twbs/bootstrap/pull/26630
Security Fix Commit FIX COMMIT
https://github.com/twbs/bootstrap/commit/2a5ba23ce8f041f3548317acc992ed8a736b609d
Security Fix Commit FIX COMMIT
https://github.com/twbs/bootstrap/commit/2d90d369bbc2bd2647620246c55cec8c4705e3d0
Bootstrap Security Information SECURITY
https://www.tenable.com/security/tns-2021-14
Bootstrap Security Information SECURITY
https://www.oracle.com/security-alerts/cpuApr2021.html
seclists.org/bugtraq/2019/may/18 WEB
https://seclists.org/bugtraq/2019/May/18
lists.apache.org/thread.html/rd0e44e... WEB
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26@%3Ccommits.pulsar.apache.org%3E
lists.apache.org/thread.html/r3dc0ca... WEB
https://lists.apache.org/thread.html/r3dc0cac8d856bca02bd6997355d7ff83027dcfc82f8646a29b89b714@%3Cissues.hbase.apache.org%3E
lists.apache.org/thread.html/f9bc3e5... WEB
https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc@%3Cissues.drill.apache.org%3E
lists.apache.org/thread.html/b0656d3... WEB
https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442@%3Cdev.drill.apache.org%3E
lists.apache.org/thread.html/52e0e6b... WEB
https://lists.apache.org/thread.html/52e0e6b5df827ee7f1e68f7cc3babe61af3b2160f5d74a85469b7b0e@%3Cdev.superset.apache.org%3E
lists.apache.org/thread.html/519eb0f... WEB
https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f@%3Cdev.drill.apache.org%3E
Bootstrap Source Repository REPOSITORY
https://github.com/twbs/bootstrap
Bootstrap Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/bootstrap/CVE-2018-14042.yml
Bootstrap Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/bootstrap-sass/CVE-2018-14042.yml
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-7mvr-5x2g-wfc8
Bootstrap Security Information SECURITY
https://blog.getbootstrap.com/2018/07/12/bootstrap-4-1-2
Bootstrap Security Information SECURITY
http://packetstormsecurity.com/files/156743/OctoberCMS-Insecure-Dependencies.html
seclists.org/fulldisclosure/2019... WEB
http://seclists.org/fulldisclosure/2019/May/10
seclists.org/fulldisclosure/2019... WEB
http://seclists.org/fulldisclosure/2019/May/11
seclists.org/fulldisclosure/2019... WEB
http://seclists.org/fulldisclosure/2019/May/13

Frequently Asked Questions

What is CVE-2018-14042?
CVE-2018-14042 is a security vulnerability in Bootstrap involving Bootstrap Cross-site Scripting vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Bootstrap versions are affected?
Affected versions include releases prior to 4.1.2, 3.4.0 across affected packages: bootstrap, org.webjars:bootstrap, twbs/bootstrap, bootstrap-sass, bootstrap.sass.
What version fixes CVE-2018-14042?
Upgrading to 4.1.2, 3.4.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is bootstrap affected?
Yes, bootstrap is affected in releases prior to 4.1.2, 3.4.0. Upgrade your dependency to 4.1.2, 3.4.0 or later.
Is twbs/bootstrap affected?
Yes, twbs/bootstrap is affected in releases prior to 4.1.2, 3.4.0. Upgrade your dependency to 4.1.2, 3.4.0 or later.
What is the CVSS score of CVE-2018-14042?
CVE-2018-14042 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2018-14042?
CVE-2018-14042 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check RubyGems dependencies for CVE-2018-14042?
Run the dependency tree command: 'inspect dependencies for bootstrap'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-7mvr-5x2g-wfc8",
  "modified" : "2026-06-08T23:16:17Z",
  "published" : "2018-09-13T15:50:32Z",
  "aliases" : [ "CVE-2018-14042" ],
  "summary" : "Bootstrap Cross-site Scripting vulnerability",
  "details" : "In Bootstrap starting in version 2.3.0 and prior to versions 3.4.0 and 4.1.2, XSS is possible in the data-container property of tooltip.  This is similar to CVE-2018-14041.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
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  }, {
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  }, {
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  }, {
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    "type" : "WEB",
    "url" : "https://www.tenable.com/security/tns-2021-14"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuApr2021.html"
  }, {
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    "url" : "https://seclists.org/bugtraq/2019/May/18"
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    "url" : "https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26@%3Ccommits.pulsar.apache.org%3E"
  }, {
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  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:23:00Z",
    "nvd_published_at" : "2018-07-13T14:29:00Z"
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}