UBUNTU-CVE-2019-20920

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2019-20920
Published: 30 Sept 2020, 18:15
Last modified:24 Oct 2025, 04:48

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
8.1 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Sept 2020, 18:15
Published
Vulnerability first disclosed
24 Oct 2025, 04:48
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L

Affected Systems

  • ubuntu•node-handlebars

    all

References (5)