Description
Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object's __proto__ and __defineGetter__ properties, which may allow an attacker to execute arbitrary code through crafted payloads.
Remediation
References
Related Vulnerabilities
Oracle Database Server CVE-2012-0510 Vulnerability (CVE-2012-0510)
OpenSSL NULL Pointer Dereference Vulnerability (CVE-2025-11187)
SharePoint Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2018-8580)
Django URL Redirection to Untrusted Site ('Open Redirect') Vulnerability (CVE-2017-7234)
WordPress Plugin Content Aware Sidebars-Unlimited Widget Areas Security Bypass (3.8)