CVE-2016-10735: 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,

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MEDIUM 6.1UPGRADE

CVE-2016-10735 is a medium-severity flaw (CVSS 6.1) affecting bootstrap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

EPSS top 9%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	4.0% (top 9%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-01-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: getbootstrap

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-01-09 05:29 UTCPublished CVE record published
2026-06-17 00:40 UTCUpdated Record last modified

getbootstrap bootstrap UPGRADE

Affected: >= 3.0.0 and < 3.4.0 · 4.0.0 beta

Fixed in: 3.4.0

Safe to downgrade to: a release before 3.0.0

1. Check installed version

apt-cache policy bootstrap || rpm -q bootstrap || bootstrap --version

2. UPGRADE to 3.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bootstrap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bootstrap

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)

apt-cache madison bootstrap sudo apt install bootstrap=<VERSION_BEFORE_3.0.0> sudo apt-mark hold bootstrap

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list bootstrap sudo dnf downgrade bootstrap-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add bootstrap

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-10735?

bootstrap: upgrade to 3.4.0. Exact commands for each OS are on this page.

Is CVE-2016-10735 being exploited?

CVE-2016-10735 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-10735 affect?

CVE-2016-10735 affects bootstrap. Severity is medium (CVSS 6.1). 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.

How urgent is CVE-2016-10735?

Priority 49/100. EPSS top 9%: very likely to be exploited; Public exploit reference

Software pages

Bootstrap vulnerabilities

Related CVEs

CVE-2019-8331 MEDIUM 6.1 UPGRADE UPGRADE In Bootstrap before 3.4.1 and 4.3.x before 4.3.1, XSS is possible in the tooltip or popover data-template attr
CVE-2018-20677 MEDIUM 6.1 UPGRADE In Bootstrap before 3.4.0, XSS is possible in the affix configuration target property.
CVE-2018-20676 MEDIUM 6.1 UPGRADE In Bootstrap before 3.4.0, XSS is possible in the tooltip data-viewport attribute.
CVE-2018-14042 MEDIUM 6.1 UPGRADE In Bootstrap before 4.1.2, XSS is possible in the data-container property of tooltip.
CVE-2018-14041 MEDIUM 6.1 UPGRADE In Bootstrap before 4.1.2, XSS is possible in the data-target property of scrollspy.

References

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