jQuery – XSS Vulnerability On Versions Under 3.5.0, Via The htmlPrefilter Method

< 1 min read

Impact area

Security

Severity

High

Affected element

ServiceNow

UI Script

Salesforce

Static Resource

Rule number #

SN-JSL-JQUERY-LESSTHAN-V350(for ServiceNow)

SF-JSL-JQUERY-LESSTHAN-V350(for Salesforce)

Impact #

jQuery used a regex in its jQuery.htmlPrefilter method to ensure that all closing tags were XHTML-compliant when passed to methods. An issue has been reported that demonstrated the regex could introduce a cross-site scripting (XSS) vulnerability.

Remediation #

Update jQuery to the latest version.

Time to fix #

30 min

Updated on March 21, 2025
Was it helpful ?