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GHSA-2QVQ-RJWJ-GVW9 Handlebars.js has Prototype Pollution Leading to XSS through Partial Template Injection

🗓️ 26 Mar 2026 22:20:51Reported by GoogleType 
osv
 osv🔗 osv.dev👁 1 Views

Prototype pollution in Handlebars allows XSS by using a polluted Object.prototype as a partial.

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28 Mar 2026 00:14Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.14.7
EPSS0.05666
Prototype pollutionHandlebars runtimePartial injectionCross site scriptingUnescaped rendering
1