---
title: Handlebars – Template Injection And Remote Code Execution On Versions Under 4.6.0
description: "**Impact area** Security **Severity** High **Affected element** **ServiceNow** UI Script **Salesforce** Static Resource ## Rule number **SN-JSL-HANDLEBARS-LESSTHAN-V460 **(for ServiceNow) **SF-JSL-HANDLEBARS-LESSTHAN-V460 **(for Salesforce) ## Impact Templates may alter an Objects’ prototype, thus allowing an attacker to execute arbitrary code on the server. Remediation…"
url: "https://community-staging.qualityclouds.com/qcdocs/qcr/rules/handlebars-template-injection-and-remote-code-execution-on-versions-under-4-6-0/"
updated: "2025-03-21"
category: Rules
---

# Handlebars – Template Injection And Remote Code Execution On Versions Under 4.6.0

**Impact area**

Security

**Severity**

High

**Affected element**

**ServiceNow**

UI Script

**Salesforce**

Static Resource

## Rule number

**SN-JSL-HANDLEBARS-LESSTHAN-V460 **(for ServiceNow)

**SF-JSL-HANDLEBARS-LESSTHAN-V460 **(for Salesforce)

## Impact

Templates may alter an Objects’ prototype, thus allowing an attacker to execute arbitrary code on the server.

Remediation

Update the Handlebars JS library 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).