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CVE-2019-8331· NVD / CVE Program· CNA mitre

In Bootstrap before 3.4.1 and 4.3.x before 4.3.1, XSS is possible in the tooltip or popover data-template attribute.

MediumCVSS 6.1 · v3.1—Proof of concept Fix available
Published
Feb 20, 2019
Updated
Jun 16, 2026
EPSS
16.4% · 97th percentile
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Action score

29

Monitor

Low priority for now.

CVSS
24 / 40 · 6.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
5 / 30 · 16.4%

Affected systems

VendorProduct
getbootstrapbootstrap
f5big-ip access policy manager
f5big-ip advanced firewall manager
f5big-ip analytics
f5big-ip application acceleration manager
f5big-ip application security manager
f5big-ip domain name system
f5big-ip edge gateway
f5big-ip fraud protection service
f5big-ip global traffic manager
f5big-ip link controller
f5big-ip local traffic manager

and 4 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • f5 big-ip access policy manager14.0.0 and later · before 14.1.2.5
  • f5 big-ip access policy manager15.0.0 and later · before 15.1.0
  • f5 big-ip access policy manager12.1.0 and later · before 12.1.5.1
  • f5 big-ip access policy manager13.0.0 and later · before 13.1.3.4
  • f5 big-ip advanced firewall manager13.0.0 and later · before 13.1.3.4
  • f5 big-ip advanced firewall manager15.0.0 and later · before 15.1.0
  • f5 big-ip advanced firewall manager12.1.0 and later · before 12.1.5.1
  • f5 big-ip advanced firewall manager14.0.0 and later · before 14.1.2.5
  • f5 big-ip analytics13.0.0 and later · before 13.1.3.4
  • f5 big-ip analytics15.0.0 and later · before 15.1.0
  • f5 big-ip analytics12.1.0 and later · before 12.1.5.1
  • f5 big-ip analytics14.0.0 and later · before 14.1.2.5
  • f5 big-ip application acceleration manager13.0.0 and later · before 13.1.3.4
  • f5 big-ip application acceleration manager15.0.0 and later · before 15.1.0
  • f5 big-ip application acceleration manager12.1.0 and later · before 12.1.5.1
  • f5 big-ip application acceleration manager14.0.0 and later · before 14.1.2.5
  • f5 big-ip application security manager13.0.0 and later · before 13.1.3.4
  • f5 big-ip application security manager15.0.0 and later · before 15.1.0
  • f5 big-ip application security manager12.1.0 and later · before 12.1.5.1
  • f5 big-ip application security manager14.0.0 and later · before 14.1.2.5

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8custodiabefore 0.6.0-3.module_el8.6.0+2881+2f24dc920.6.0-3.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-custodiabefore 0.6.0-3.module_el8.6.0+2881+2f24dc920.6.0-3.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-jwcryptobefore 0.5.0-1.module_el8.6.0+2737+7e73ea900.5.0-1.module_el8.6.0+2737+7e73ea90
AlmaLinux:8python3-jwcryptobefore 0.5.0-1.module_el8.6.0+2881+2f24dc920.5.0-1.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-jwcryptobefore 0.5.0-1.module_el8.5.0+2641+983b221b0.5.0-1.module_el8.5.0+2641+983b221b
AlmaLinux:8python3-kdcproxybefore 0.4-5.module_el8.6.0+2881+2f24dc920.4-5.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-pyusbbefore 1.0.0-9.module_el8.6.0+2737+7e73ea901.0.0-9.module_el8.6.0+2737+7e73ea90
AlmaLinux:8python3-pyusbbefore 1.0.0-9.module_el8.6.0+2881+2f24dc921.0.0-9.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-pyusbbefore 1.0.0-9.module_el8.5.0+2641+983b221b1.0.0-9.module_el8.5.0+2641+983b221b
AlmaLinux:8python3-qrcodebefore 5.1-12.module_el8.6.0+2881+2f24dc925.1-12.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-qrcodebefore 5.1-12.module_el8.6.0+2737+7e73ea905.1-12.module_el8.6.0+2737+7e73ea90
AlmaLinux:8python3-qrcodebefore 5.1-12.module_el8.5.0+2641+983b221b5.1-12.module_el8.5.0+2641+983b221b
AlmaLinux:8python3-qrcode-corebefore 5.1-12.module_el8.5.0+2641+983b221b5.1-12.module_el8.5.0+2641+983b221b
AlmaLinux:8python3-qrcode-corebefore 5.1-12.module_el8.6.0+2881+2f24dc925.1-12.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-qrcode-corebefore 5.1-12.module_el8.6.0+2737+7e73ea905.1-12.module_el8.6.0+2737+7e73ea90
AlmaLinux:8python3-yubicobefore 1.3.2-9.module_el8.6.0+2881+2f24dc921.3.2-9.module_el8.6.0+2881+2f24dc92
AlmaLinux:8python3-yubicobefore 1.3.2-9.module_el8.6.0+2737+7e73ea901.3.2-9.module_el8.6.0+2737+7e73ea90
AlmaLinux:8python3-yubicobefore 1.3.2-9.module_el8.5.0+2641+983b221b1.3.2-9.module_el8.5.0+2641+983b221b
Debian:12twitter-bootstrap3before 3.4.1+dfsg-13.4.1+dfsg-1
Debian:12twitter-bootstrap4before 4.3.1+dfsg2-14.3.1+dfsg2-1
Mavenorg.webjars:bootstrapfrom 3.0.0 · before 3.4.13.4.1
Mavenorg.webjars:bootstrapfrom 3.0.0 · before 3.4.13.4.1
Mavenorg.webjars:bootstrapfrom 3.0.0 · before 3.4.13.4.1
Mavenorg.webjars:bootstrapfrom 3.0.0 · before 3.4.13.4.1

+96

Other highest-scoring records for the same primary product.

  • CVE-2018-20677In Bootstrap before 3.4.0, XSS is possible in the affix configuration target property.
    25Monitor
  • CVE-2018-20676In Bootstrap before 3.4.0, XSS is possible in the tooltip data-viewport attribute.
    25Monitor
  • CVE-2016-10735In 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
    25Monitor
  • CVE-2018-14042In Bootstrap before 4.1.2, XSS is possible in the data-container property of tooltip.
    25Monitor
  • CVE-2018-14041In Bootstrap before 4.1.2, XSS is possible in the data-target property of scrollspy.
    25Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:custodia0.6.0-3.module_el8.6.0+2881+2f24dc92 · AlmaLinux:8Package registry (OSV)
almalinux:python3-custodia0.6.0-3.module_el8.6.0+2881+2f24dc92 · AlmaLinux:8Package registry (OSV)
almalinux:python3-jwcrypto0.5.0-1.module_el8.5.0+2641+983b221b · AlmaLinux:8Package registry (OSV)
almalinux:python3-kdcproxy0.4-5.module_el8.6.0+2881+2f24dc92 · AlmaLinux:8Package registry (OSV)
almalinux:python3-pyusb1.0.0-9.module_el8.5.0+2641+983b221b · AlmaLinux:8Package registry (OSV)
almalinux:python3-qrcode5.1-12.module_el8.6.0+2881+2f24dc92 · AlmaLinux:8Package registry (OSV)
almalinux:python3-qrcode-core5.1-12.module_el8.6.0+2737+7e73ea90 · AlmaLinux:8Package registry (OSV)
almalinux:python3-yubico1.3.2-9.module_el8.5.0+2641+983b221b · AlmaLinux:8Package registry (OSV)
debian:twitter-bootstrap33.4.1+dfsg-1 · Debian:12Package registry (OSV)
debian:twitter-bootstrap44.3.1+dfsg2-1 · Debian:12Package registry (OSV)
Maven:org.webjars:bootstrap3.4.1Package registry (OSV)
Maven:org.webjars:bootstrap4.3.1Package registry (OSV)
npm:bootstrap3.4.1Package registry (OSV)
npm:bootstrap4.3.1Package registry (OSV)
npm:bootstrap-sass3.4.1Package registry (OSV)
NuGet:bootstrap3.4.1Package registry (OSV)
NuGet:bootstrap4.3.1Package registry (OSV)
NuGet:Bootstrap.Less3.4.1Package registry (OSV)
NuGet:bootstrap.sass4.3.1Package registry (OSV)
Packagist:twbs/bootstrap3.4.1Package registry (OSV)
Packagist:twbs/bootstrap4.3.1Package registry (OSV)
red hat:novnc0:1.1.0-1.el8ost · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine0:4.4.1.8-0.7.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine-api-explorer0:0.0.6-1.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine-backend0:4.4.1.8-0.7.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine-dbscripts0:4.4.1.8-0.7.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine-health-check-bundler0:4.4.1.8-0.7.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine-restapi0:4.4.1.8-0.7.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine-setup0:4.4.1.8-0.7.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-engine-setup-base0:4.4.1.8-0.7.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)

+18

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×3

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02022-05-23
Proof-of-concept repository on GitHubstars:02023-09-09
Proof-of-concept repository on GitHubstars:42025-07-21

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+1187 d
  3. TodaySep 30, 2026+2779 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvd-primary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records