Description
Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates or in a victim's browser (effectively serving as XSS).
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
Low
Affected products
References
- VENDOR_ADVISORYhttps://www.npmjs.com/advisories/1316
- VENDOR_ADVISORYhttps://www.npmjs.com/advisories/1324
- MISChttps://snyk.io/vuln/SNYK-JS-HANDLEBARS-534478
Updated 17m ago · 8 sources