Bootstrap up to 3.3.x Tooltip cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Bootstrap up to 3.3.x. The impacted element is an unknown function of the component Tooltip Handler. The manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2018-20676. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Bootstrap up to 3.3.x. This issue affects an unknown functionality of the component Tooltip Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. 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. Impacted is integrity. The summary by CVE is:

In Bootstrap before 3.4.0, XSS is possible in the tooltip data-viewport attribute.

The bug was discovered 12/13/2018. The weakness was disclosed 01/09/2019 (Website). It is possible to read the advisory at blog.getbootstrap.com. The identification of this vulnerability is CVE-2018-20676 since 01/08/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 27 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 294770 (MiracleLinux 8 : idm:DL1 (AXSA:2021-1595:01)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.4.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (294770). The entries VDB-128792 and VDB-128928 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 294770
Nessus Name: MiracleLinux 8 : idm:DL1 (AXSA:2021-1595:01)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Bootstrap 3.4.0
Patch: github.com

Timelineinfo

12/13/2018 🔍
01/08/2019 +26 days 🔍
01/09/2019 +1 days 🔍
01/09/2019 +0 days 🔍
01/10/2019 +1 days 🔍
01/21/2026 +2568 days 🔍

Sourcesinfo

Advisory: RHSA-2019:1456
Status: Confirmed

CVE: CVE-2018-20676 (🔍)
GCVE (CVE): GCVE-0-2018-20676
GCVE (VulDB): GCVE-100-128927
See also: 🔍

Entryinfo

Created: 01/10/2019 21:00
Updated: 01/21/2026 12:10
Changes: 01/10/2019 21:00 (58), 04/27/2020 20:59 (1), 06/23/2023 14:49 (5), 01/21/2026 12:10 (18)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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