---
title: "Bootstrap – XSS Vulnerability On Versions Under 3.4.0, On data-target Attribute"
description: "**Impact area** Security **Severity** High **Affected element** **ServiceNow** UI Script **Salesforce** Static Resource ## Rule number **SN-JSL-BOOTSTRAP-LESSTHAN-V340 **(for ServiceNow) **SF-JSL-BOOTSTRAP-LESSTHAN-V340**(for Salesforce) ## Impact The data-target attribute is vulnerable to Cross-Site Scripting attacks in versions before 3.4.0. ## Remediation Update bootstrap to…"
url: "https://community-staging.qualityclouds.com/qcdocs/qc/vulnerabilities-in-open-source-libraries-salesforce/bootstrap-xss-vulnerability-on-versions-under-3-4-0-on-data-target-attribute/"
updated: "2025-03-21"
category: Rules
---

# Bootstrap – XSS Vulnerability On Versions Under 3.4.0, On data-target Attribute

**Impact area**

Security

**Severity**

High

**Affected element**

**ServiceNow**

UI Script

**Salesforce**

Static Resource

## Rule number

**SN-JSL-BOOTSTRAP-LESSTHAN-V340 **(for ServiceNow)

**SF-JSL-BOOTSTRAP-LESSTHAN-V340**(for Salesforce)

## Impact

The data-target attribute is vulnerable to Cross-Site Scripting attacks in versions before 3.4.0.

## Remediation

Update bootstrap to the latest version.

### Time to fix

30 min

## References

This rule is linked to [Common Weakness Enumeration CWE-79 Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)](https://cwe.mitre.org/data/definitions/79.html).