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Handlebars Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2019-20920) - Vulnerability Database

Handlebars Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2019-20920)

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).

References

CVE-2019-20920

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Severity

High

Classification

CVE-2019-20920
CWE-94
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L

Tags

Missing Update
Known Vulnerabilities