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).
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2022-0789 | 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). |
Github GHSA |
GHSA-3cqr-58rm-57f8 | Arbitrary Code Execution in Handlebars |
References
History
Fri, 09 Oct 2026 09:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-10-08T21:13:55.415Z
Reserved: 2020-09-30T00:00:00.000Z
Link: CVE-2019-20920
Updated: 2024-08-05T03:00:18.770Z
Status : Modified
Published: 2020-09-30T18:15:17.927
Modified: 2026-10-08T22:16:54.603
Link: CVE-2019-20920
OpenCVE Enrichment
No data.
EUVD
Github GHSA