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).

Remediation

References

CVE-2019-20920

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WordPress Other Vulnerability (CVE-2007-3240)

Ruby on Rails Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2020-8167)

Drupal Core 8.6.x Cross-Site Scripting (8.6.0 - 8.6.12)

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